If you invest $8,100 per period for the following number of periods, how much would you have in each of the following instances? Use Appendix C for an approximate answer, but calculate your final answer using the formula and financial calculator methods a. In 8 years at 6 percent? Note: Do not round intermedlate calculations. Round your final answer to 2 decimal places. b. In 30 years at 12 percent? Note: Do not round intermediate calculations. Round your final answer to 2 decimal places