Exhibit 7B-1: Present Value of $1; 1 / (1+r)^n

Exhibit 7B-2

Welch Corporation is planning an investment with the following characteristics (Ignore Income taxes.): 9 years $60,000 Useful life Yearly net cash inflow Salvage value Internal rate of return Required rate of return 12% 8% Click here to view Exhibit 7B-1 and Exhibit 7B-2, to determine the appropriate discount factor(s) using the tables provided. The initial cost of the equipment is closest to: Periods 4% 5% 6% 7% 8% 9% 10% 1% 12% 3% 4% 15% 16% 7% 18% 19% 20% 21% 22% 23% 24% 25% 1 0.962 0.952 0.943 0935 0926 097 0909 0901 0893 0.885 0.87 0.870 0862 0.855 0.847 0840 0.833 0826 0820 083 0806 0800 2 0.925 0.907 0.890 0.873 0.857 0842 0826 0.82 0797 0783 0769 0.756 0.743 0.731 0.718 0706 0694 0683 0672 0661 0650 0640 0889 0864 0840 0816 0794 072 0751 0731 0712 0693 0675 0658 0641 0624 0609 0593 0579 0564 0551 0537 0524 0512 4 0855 0823 0792 0763 0735 0.708 0683 0659 0636 0613 0592 0572 0552 0534 0516 0499 0482 0467 0451 0437 0423 0410 0822 0.784 0.747 0713 0681 0650 0621 0593 0567 0543 0519 0497 0476 0.456 0437 0419 0402 0386 0370 0355 0341 0328 6 0790 0746 0705 0666 0630 0596 0564 0535 0507 0480 0456 0432 0410 0.390 0.370 0352 0335 0319 0.303 0289 0275 0262 7 0.760 0.711 0665 0623 0583 0547 0513 0482 0452 0425 0400 0376 0.354 0.333 0.314 0296 0279 0.263 0249 0235 0222 0210 8 0.731 0.67 0627 0.582 0.540 0502 0467 0434 0404 0376 0351 0327 0.305 0.285 0.266 0249 0233 0.218 0204 0191 079 0168 9 0.703 0.645 0.592 0544 0.500 0.460 0424 0391 0361 0333 0308 0.284 0.263 0.243 0.225 0.209 0194 0180 0167 0.155 0.144 0.134 10 0.676 0.614 0558 0.508 0.463 0422 0.386 0352 0322 0295 0270 0.247 0227 0.208 0.191 0.176 0162 0.149 0137 0.126 0.116 0.107 11 0650 0585 0527 0475 0429 0.388 0.350 0.37 0287 0261 0237 0.25 0195 0.178 0.162 0.148 0135 0.123 012 0103 0094 0.086 2 0.625 0.557 0.497 0.444 0397 0.356 0319 0286 0257 0231 0208 0187 0.168 0.152 0.137 0124 0112 0102 0.092 0083 0076 0.069 3 0601 0.530 0469 0415 0368 0326 0290 0.258 0.229 0204 0182 0163 0.145 0130 0.16 0104 0.093 0.084 0075 0068 0061 0055 4 057 0.505 0442 0.388 0340 0299 0263 0232 0205 0181 0160 0.141 0.125 011 0.099 0088 0078 0069 0062 0055 0049 0044 5 0.555 0.481 0417 0362 0315 0275 0239 0209 0.183 0160 0140 0123 0.108 0.095 0.084 0074 0065 0.057 0051 0045 0040 0.035 16 0534 0458 0394 0339 0292 0252 0218 0188 0163 0141 0123 0107 0093 0081 0071 0062 0054 0047 0042 0036 0032 0028 7 053 0436 0.371 037 0270 0.231 0198 0170 0.146 0125 0108 0093 0080 0069 0060 0052 0045 0039 0034 0030 0026 0023 18 0494 0416 0350 0.296 0250 0.22 0180 0.153 0130 011 0095 0081 0069 0.059 0.051 0044 0038 0032 0028 0024 0021 0018 19 0475 0.396 0.331 0.277 0232 0194 0.164 0138 0.116 0098 0083 0070 0.060 0.051 0043 0037 0031 0027 0023 0020 007 0014 20 0.456 0.37 0.312 0.258 0.215 0.178 0.149 0124 0104 0.087 0073 0.061 0.051 0.043 0.037 0031 0026 0022 0019 0.016 0.014 0012 21 0.439 0359 0294 0242 0199 0.164 0.135 0.12 0.093 0. 07 0.064 0.053 0.044 0.037 0031 0026 0022 0018 0.05 0.03 0.011 0009 22 0422 0.342 0278 0226 0184 0150 0123 0101 0083 0068 0056 0046 0038 0032 0.026 0022 0018 0.015 0013 0.01 0009 0.007 23 0.406 0.326 0262 0.211 0.170 0.138 0.112 0091 0074 0.060 0049 0.040 0.033 0.027 0.022 0018 0.05 0.012 0.010 0.009 0007 0.006 0.390 0.310 0.247 0197 0158 0.126 0102 0082 0066 0053 0043 0.035 0.028 0.023 0.019 0.015 003 0.010 0.008 0007 0.006 0005 25 0375 0.295 0.233 0.184 0.146 0.116 0.092 0074 0059 0047 0038 0030 0024 0.020 0.016 0013 0010 0009 0.007 0.006 0.005 0.004 26 0361 0281 0220 072 0135 0106 0084 0066 0053 0042 0033 0026 0021 007 004 001 0009 000 0006 0005 0004 0003 27 0.347 0268 0207 0161 0125 0098 0076 0060 0047 0037 0029 0023 0018 0014 001 0009 0007 0006 0005 0004 0003 0002 | 28 0333 0.255 0196 0.150 0116 0090 0069 0054 0042 0033 0026 0020 0.016 0.012 0010 0008 0006 0005 0004 0003 0002 0002 29 0321 0243 0185 0.141 0107 0082 0063 0048 0037 0029 0022 007 0014 001 0.008 0006 0005 0004 0003 0002 0002 0002 | 30 0.308 0.231 0.174 0131 0099 0.075 0057 0.044 0033 0026 0020 0.015 002 0.009 0.007 0005 0004 0003 0003 0.002 0.002 0001 | 40 0.208 0142 0.097 0.067 0046 0032 0022 005 001 0008 0005 0004 0003 0.002 0.001 0001 0001 0000 0000 0000 0000 0000 EXHIBIT 7B-2 Present Value of an Annuity of $1 in Arrears; Periods 4% 5% 6% 7% 8% 9% 10% 11% 12% 13% 14% 15% 16% 17% 18% 19% 20% 21% 22% 23% 24% 25% 1 0.962 0.952 0.943 0.935 0.926 0.917 0.909 0.901 0.893 0.885 0.877 0.870 0.862 0.855 0.847 0.840 0.833 0.826 0.820 0.813 0.806 0.800 2 1.886 1859 1833 1.808 1.783 1759 1736 1.713 1.690 1.668 1.647 1.626 1.605 1.585 1566 1.547 1.528 1.509 1.492 1.474 1.457 1440 3 2.775 2.723 2.673 2.624 2.577 2.531 2.487 2.444 2.402 2.361 2.322 2.283 2.246 2.210 2.174 2.140 2.106 2.074 2.042 2.011 1.981 1952 4 3.630 3.546 3.465 3.387 3.312 3.240 3.170 3.102 3.037 2.974 2.914 2.855 2.798 2.743 2.690 2.639 2.589 2.540 2.494 2.448 2.404 2.362 5 4.452 4.329 4.212 4.100 3.993 3.890 3.791 3.696 3.605 3.517 3.433 3.352 3.274 3.1993.127 3.058 2.991 2.926 2.864 2.803 2.745 2.689 6 5.242 5.076 4.917 4.767 4.623 4.486 4.355 4.231 4.111 3.998 3.889 3.784 3.685 3.589 3.498 3.410 3.326 3.245 3.167 3.092 3.020 2.951 7 6.002 5.786 5.582 5.389 5.206 5.033 4.868 4.712 4.564 4.423 4.288 4.160 4.039 3.922 3.812 3.706 3.605 3.508 3.416 3.327 3.242 3.161 8 6.733 6.463 6.210 5.971 5.747 5535 5.335 5.146 4.968 4.799 4.639 4.487 4.344 4.207 4.078 3.954 3.837 3.726 3.619 3.518 3.421 3.329 9 7.435 7108 6.802 6.515 6.247 5.995 5.759 5.537 5.328 5.132 4.946 4.772 4.607 4.451 4.303 4.163 4.031 3.905 3.786 3.6733.566 3.463 10 8.111 7722 7360 7024 6.710 6.418 6.145 5.889 5.650 5.426 5.216 5.019 4.833 4.659 4494 4.339 4.192 4.054 3.923 3.799 3.682 3.571 11 8.760 8.306 7.887 7.49971396.805 6.495 6.207 5.938 5.687 5.453 5.234 5.029 4.836 4.656 4.486 4.327 4.177 4.035 3.902 3.776 3.656 12 9.385 8.863 8.384 7.943 7.536 71616 .814 6.492 6.194 5.918 5.660 5.421 5.197 4.988 4.793 4.611 4.439 4.278 4.127 3.985 3.851 3.725 139.986 9.394 8.853 8.358 7.904 7.487 7103 6.750 6.424 6.122 5.842 5.583 5.342 5.118 4.910 4.715 4.533 4.362 4203 4.053 3.912 3.780 14 10.563 9.899 9.295 8.745 8.244 7786 7367 6.982 6.628 6.302 6.002 5.724 5.468 5.229 5.008 4.802 4.611 4.432 4.265 4.108 3.962 3.824 1511118 10380 9712 9108 8.559 8061 7606 7191 6.811 6.462 6.142 5.847 5575 5324 5092 4.876 4675 4,489 4.31541534.001 3.859 11.652 10.838 10.106 9.447 8.851 8.313 7.824 7.379 6.974 6.604 6.265 5.954 5.668 5.405 5.162 4.938 4.730 4.536 4.357 4.189 4.033 3.887 17 12.166 11.274 10.477 9.763 9.122 8.544 8.022 7549 7120 6.729 6.373 6.047 5.749 5.475 5.222 4.990 4.775 4.576 4.391 4.219 4.059 3.910 18 12659 11.690 10.828 10.059 9.372 8.756 8201 7702 7250 6.840 6.467 6.128 5.818 5.534 5.273 5.033 4.812 4.608 4.419 4.243 4.080 3.928 19 1 3.134 12.085 11.158 10.336 9.604 8.950 8.365 78397366 6.938 6.550 6.198 5.877 5.584 5.316 5.070 4.843 4.635 4.442 4.263 4.097 3.942 20 13.590 12.462 11.470 10.594 9.818 9.1298.514 7.963 7.4697025 6.623 6.259 5.929 5.628 5.353 5.101 4.870 4.657 4.460 4.279 4.110 3.954 21 14.029 12.821 11.764 10.836 10.017 9.292 8649 8.075 7.562 7102 6.687 6.312 5.9735.665 5.384 5.127 4.891 4.675 4.476 4.292 4.121 3.963 22 14.451 13.163 12.042 11.061 10.201 9.442 8.772 8176 7645 7170 6.743 6.359 6.011 5.696 5.410 5149 4.909 4.690 4.488 4.302 4130 3.970 14.857 13.489 12.303 11.272 10.371 9.580 8.883 8266 7718 7230 6.792 6.399 6.044 5723 5.432 5.167 4.925 4.703 4.499 4.311 4.137 3.976 24 15.247 13.799 12.550 11.469 10.529 9.707 8.985 8.348 7784 7.283 6.835 6.434 6.073 5.746 5.451 5.182 4.937 4.713 4.507 4.318 4.143 3.981 25 15.622 14.094 12.783 11.654 10.675 9.8239.077 8.422 7.843 7.330 6.873 6.464 6.097 5.766 5.467 5.195 4.948 4.721 4.514 4.323 4.147 3.985 15.983 14.375 13.003 11.826 10.810 9.929 9.161 8.488 7.896 7372 6.906 6.491 6.118 5783 5.480 5.206 4.956 4.728 4.520 4.328 4.151 3.988 27 16.330 14.643 13.211 11.987 10.935 10.027 9.237 8.548 7.943 7.409 6.935 6.514 6.136 5.798 5.492 5.215 4.964 4.734 4.524 4.332 4.154 3.990 16.663 14.898 13.406 12.137 11.051 10.116 9.307 8.602 7984 7.441 6.961 6.534 6.152 5.810 5.502 5.223 4.970 4.739 4.528 4.335 4.157 3.992 29 16.984 15.141 13.591 12.278 11.158 10.198 9.370 8.650 8.022 7.470 6.983 6.551 6.166 5.820 5.510 5.229 4.975 4.743 4.531 4.337 4.159 3.994 30 17.292 15.372 13.765 12.409 11.258 10.274 9.427 8.694 8.055 7496 7.003 6.566 6.177 5.829 5.517 5.235 4.979 4.746 4.534 4.339 4.160 3.995 40 19.793 17.159 15.046 13.332 11.925 10.757 9.779 8.951 8.244 7.634 7105 6.642 6.233 5.871 5.548 5.258 4.997 4.760 4.544 4.347 4.166 3.999