Problem 3-39 (LO 3-2, LO 3-3) (Algo) Isabel, a calendar-year taxpayer, uses the cash method of accounting for her sole proptietorship. In late December she received a $50,000 bill from her accountant for consulting services related to her small business. Isabel can pay the $50,000 bill anytime before January 30 of next year without penalty. Assume her marginal tax rate is 37 percent this year and next year, and that she can earn an after-tax rate of return of 10 percent on her imvestments Required: a. What is the after-tax cost if Isabel pays the $50,000 bill in December? b. What is the after-tax cost if Isabel pays the $50,000 bill in January? Use Exhibit 31 Note: Round your answer to the nearest whole dollar amount. c. Based on requirements a and b, should Isabel pay the $50,000 bill in December or January? Complete this question by entering your answers in the tabs below. What is the after-tax cost if Isabel pays the $50,000 bill in December? \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}