How much would you have to invest today to receive the following Use Appendix and Acondik D for approximate newer but calculate your final answer using the formula and financial calculator methods o $15.000 in 8 years at 10 percent (Do not round intermediate calculations. Round your final answer to 2 decimal places) Present value 5 6.99761 b. $20,000 in 12 years at 13 percent. (Do not round intermediate calculations. Round your final answer to 2 decimal places) Present value c. 56.000 each year for 10 years at 9 percent (Do not round Intermediate calculations. Round your final answer to 2 decimal places.) Present value d. $50,000 each year for 50 years at 7 percent. (Do not round intermediate calculations. Round your final answer to 2 decimal places.) Presente