How much would you have to invest today to recelve the following? Use Appendix B and ARpendix D for an approximate answer, but calculate your final answer using the formula and financial calculator methods. a. $12,100 in 5 years at 9 percent. (Do not round intermediate calculations. Round your final answer to 2 decimal places.) b. $15,500 in 16 years at 10 percent. (Do not round intermediate calculations. Round your final answer to 2 decimal places.)