1. Susan invested $2,500.00 per year in an IRA each year for 10 years. The interest rate was 7% compounded annually. At the end of 10 years she ceased the IRA payments but left the total of the investment at 6% compounded annually for the next 25 years. a. What was the value of her IRA investments at the end of the 10 years? b. What was the value of her investments at the end of the next 25 years