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 Arpendix for an approximate answer, but calculate your final answer using the formula and financial calculator methods. a. In 8 years at 6 percent? (Do not round intermediate calculations. Round your final answer to 2 decimal places.) Future value b. In 30 years at 12 percent? (Do not round intermediate calculations. Round your final answer to 2 decimal places.) Future value