What is the present value of the following? Use Appendix B as an approximate answer, but calculate your final answer using the formula and financial calculator methods. a. $8,000 in 10 years at 6 percent? (Do not round intermediate calculations. Round your final answer to 2 decimal places.) Present value $ 4,467.16 b. $16,000 in 5 years at 12 percent? (Do not round intermediate calculations. Round your final answer to 2 decimal places.) Present value $ 9,078.83 c. $25,000 in 15 years at 8 percent? (Do not round intermediate calculations. Round your final answer to 2 decimal places.) Present value