(Complex present value) How much do you have to deposit today so that beginning 16 years from now you can withdraw $9,000 a year for the next 3 years (periods 16 through 18) plus an additional amount of $18,000 in that last year (period 18)? Assume an interest rate of 16 percent. a. What is the value of the $9,000 withdrawals in years 16 through 18 at the end of year 15 if the annual interest rate is 16 percent? $ 7758.62 (Round to the nearest cent.) b. What is the present value today of the 3-year $9,000 annuity at the end of year 15 (found in part a) if the annual interest rate is 16 percent? c. What is the present value of the amount of $18,000 withdrawal in year 18 if the annual discount rate is 16 percent? (Round to the nearest cent.) d. How much do you have to deposit today so that beginning 16 years from now you can withdraw $9,000 a year for the next 3 years (periods 16 through 18) plus an additional amount of $18,000 in that last year (period 18)