- She plans to invest 8,000 every year for 40 years. - She has found an investment account that earns 5% per year. - She is in a 20% income tax bracket. Interest Factors - Future Value of an Annuity \begin{tabular}{lllll} Years & 2% & 3% & 4% & 5% \\ \hline 10 & 10.9497 & 11.4639 & 12.0061 & 12.5779 \\ \hline 11 & 12.1687 & 12.8078 & 13.4864 & 14.2068 \\ \hline 12 & 13.4121 & 14.1920 & 15.0258 & 15.9171 \\ \hline 13 & 14.6803 & 15.6178 & 16.6268 & 17.7130 \\ 14 & 15.9739 & 17.0863 & 18.2919 & 19.5986 \\ 15 & 17.2934 & 18.5989 & 20.0236 & 21.5786 \\ 16 & 18.6393 & 20.1569 & 21.8245 & 23.6575 \\ 17 & 20.0121 & 21.7616 & 23.6975 & 25.8404 \\ 18 & 21.4123 & 23.4144 & 25.6454 & 28.1324 \\ 19 & 22.8406 & 25.1169 & 27.6712 & 30.5390 \\ \hline 20 & 24.2974 & 26.8704 & 29.7781 & 33.0660 \\ \hline 21 & 25.7833 & 28.6765 & 31.9692 & 35.7193 \\ 22 & 27.2990 & 30.5368 & 34.2480 & 38.5052 \end{tabular} \begin{tabular}{llllll} \hline 22 & 27.2990 & 30.5368 & 34.2480 & 38.5052 \\ \hline 23 & 28.8450 & 32.4529 & 36.6179 & 41.4305 \\ \hline 24 & 30.4219 & 34.4265 & 39.0826 & 44.5020 \\ \hline 25 & 32.0303 & 36.4593 & 41.6459 & 47.35271 \\ \hline 26 & 33.6709 & 38.5530 & 44.3177 & 51.1135 \\ \hline 27 & 35.3443 & 40.7096 & 47.0842 & 54.6691 \\ \hline 28 & 37.0512 & 42.9309 & 49.9676 & 58.4026 \\ \hline 29 & 38.7922 & 45.2188 & 52.9663 & 62.3227 \\ \hline 30 & 40.5681 & 47.5754 & 56.0849 & 66.4389 \\ \hline 40 & 60.4020 & 75.4013 & 95.0255 & 120.7998 \\ \hline \end{tabular}