The maturity value of a savings account that belonged to Peach Company was $42,878.50. The interest charged for the first 2 years was 3% compounded semi-annually, and 5% compounded quarterly for the next 3 years.

a. Calculate the amount that was in the saving account after the first 2 years when the interest rate changed.

Round to the nearest cent

b. Calculate the amount that was deposited in the savings account at the beginning of the period.

Round to the nearest cent

c. Calculate the total amount of interest earned from this investment.