1. Assume that you contribute $380 per month to a retirement plan for 20 years. Then you are able to increase the contribution to $760 per month for another 30 years. Given a 7.2 percent interest rate, what is the value of your retirement plan after the 50 years?
2. For each of the following annuities, calculate the future value. (Do not round intermediate calculations and round your answers to 2 decimal places, e.g., 32.16.) Future Value Annual Payment Years Interest Rate $ $ 1,520 10 9 % 6,540 34 10 3,640 9 7 8,330 36 11.