Solve for the unknown interest rate in each of the following: (Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.) Years Interest Rate % $ Present Value 770 960 5 6 Future Value $ 1,491 1,828 147,332 323,815 17 20,500 75,800 20 Solve for the unknown number of years in each of the following: (Do not round intermediate calculations and round your answers to 2 decimal places, e.g., 32.16.) Years Interest Rate 9 % Present Value $ 750 2,441 33,805 33,500 7 Future Value $ 1,605 4,200 392,120 213,332 12 19