Future value (with changing years). Dixie Bank offers a certificate of deposit with an option to select your own investment period. Jonathan has $8,000 for his CD investment. If the bank is offering a 5% interest rate, compounded annually, how much will the CD be worth at maturity if Jonathan picks a a. three-year investment period? b. six-year investment period? c. eight-year investment period? d. fifteen-year investment period? a. How much will the $8,000 CD investment at 5% interest rate be worth at maturity if Jonathan picks a 3-year investment period? (Round to the nearest cent.)