How much would you have to invest today to receive the following? Use Appendix B and Appendix D for an approximate answer, but calculate your final answer using the formula and financial calculator methods. a. $14,800 in 10 years at 14 percent. (Do not round intermediate calculations. Round your final answer to 2 decimal places.) b. $19,000 in 19 years at 6 percent. (Do not round intermediate calculations. Round your final answer to 2 decimal places.) c. $7,700 each year for 18 years at 13 percent. (Do not round intermediate calculations. Round your final answer to 2 decimal places.) d. $52,000 each year for 40 years at 9 percent. (Do not round intermediate calculations. Round your final answer to 2 decimal places.