How much would you have to invest today to receive the following? Use AppendixB and AppendixD for an approximate answer, but calculate your final answer using the formula and financial calculator methods. a. $16,000 in 6 years at 10 percent. Note: Do not round intermediate calculations. Round your final answer to 2 decimal places. b. $20,500 in 18 years at 7 percent. Note: Do not round intermediate calculations. Round your final answer to 2 decimal places. c. $8,500 each year for 17 years at 8 percent. Note: Do not round intermediate calculations. Round your final answer to 2 decimal places. d. $58,000 each year for 30 years at 10 percent. Note: Do not round intermediate calculations. Round your final answer to 2 decimal places. Present value of $1,PVIF PV=FV[1/(1+i)n] Present value of an annuity of $1,PVIFA PVA=A[1(1/(1+i)n)]/i