Manny, a calendar-year taxpayer, uses the cash method of accounting for his sole proprietorship. In late December he performed $20.000 of legal services for a client. Manny typically requires his clients to pay his bills immediately upon receipt. Assume Manny's marginal tax rate is 37 percent this year and next year, and that he can earn an after-tax rate of return of 12 percent on his investments. Required: a. What is the after-tax income if Manny sends his client the bill in December? b. What is the after-tax income if Manny sends his client the bill in January? Use Exhibit 3.1. Note: Round your answer to the nearest whole dollar amount. c. Based on requirements a and b, should Manny send his client the bill in December or January? Complete this question by entering your answers in the tabs below. Whst is the after-tax income if Manny sends his client the bill in December? EXHIBIT 3-1 Present Value of a Single Payment at, Various Annual Rates of \begin{tabular}{|l|c|c|c|c|c|c|c|c|c|} \hline & 4% & 5% & 6% & 7% & 8% & 9% & 10% & 11% & 12% \\ \hline Year 1 & 0.962 & 0.952 & 0.943 & 0.935 & 0.926 & 0.917 & 0.909 & 0.901 & 0.893 \\ \hline Year 2 & 0.925 & 0.907 & 0.890 & 0.873 & 0.857 & 0.842 & 0.826 & 0.812 & 0.797 \\ \hline Year 3 & 0.889 & 0.864 & 0.840 & 0.816 & 0.794 & 0.772 & 0.751 & 0.731 & 0.712 \\ \hline Year 4 & 0.855 & 0.823 & 0.792 & 0.763 & 0.735 & 0.708 & 0.683 & 0.659 & 0.636 \\ \hline Year 5 & 0.822 & 0.784 & 0.747 & 0.713 & 0.681 & 0.650 & 0.621 & 0.593 & 0.567 \\ \hline Year 6 & 0.790 & 0.746 & 0.705 & 0.666 & 0.630 & 0.596 & 0.564 & 0.535 & 0.507 \\ \hline Year 7 & 0.760 & 0.711 & 0.665 & 0.623 & 0.583 & 0.547 & 0.513 & 0.482 & 0.452 \\ \hline Year 8 & 0.731 & 0.677 & 0.627 & 0.582 & 0.540 & 0.502 & 0.467 & 0.434 & 0.404 \\ \hline Year 9 & 0.703 & 0.645 & 0.592 & 0.544 & 0.500 & 0.460 & 0.424 & 0.391 & 0.361 \\ \hline Year 10 & 0.676 & 0.614 & 0.558 & 0.508 & 0.463 & 0.422 & 0.386 & 0.352 & 0.322 \\ \hline Year 11 & 0.650 & 0.585 & 0.527 & 0.475 & 0.429 & 0.388 & 0.350 & 0.317 & 0.287 \\ \hline Year 12 & 0.625 & 0.557 & 0.497 & 0.444 & 0.397 & 0.356 & 0.319 & 0.286 & 0.257 \\ \hline Year 13 & 0.601 & 0.530 & 0.469 & 0.415 & 0.368 & 0.326 & 0.290 & 0.258 & 0.229 \\ \hline Year 14 & 0.577 & 0.505 & 0.442 & 0.388 & 0.340 & 0.299 & 0.263 & 0.232 & 0.205 \\ \hline Year 15 & 0.555 & 0.481 & 0.417 & 0.362 & 0.315 & 0.275 & 0.239 & 0.209 & 0.183 \\ \hline \end{tabular}