The interest rate for a savings fund was 3.30% compounded semi-annualy for the first 5 years and then 4.70% compounded semi-annualy for the second 5 years. Harsha invested $2,550 at the end of each 6 months for 10 years. a. Calculate the accumulated value of her investment after the first 5 years. $0.00 Round to the nearest cent b. Calculate the accumulated value of her investment at the end of 10 years. $0.00 Round to the nearest cent c. How much interest did she earn in her investment over the 10 years. Round to the nearest cent