Your aunt offers you a choice of $20,100 in 20 years or $870 today. Use Appendix B as an approximate answer, but calculate your final answer using the formula and financial calculator methods. a-1. If money is discounted at 17 percent, what is the present value of the $20,100 ? (Do not round intermediate calculations. Round your final answer to 2 decimal places.) a-2. Which offer should you choose? $870 today $20,100 in 20 years