esse invested $1,600 at the beginning of every 6 months in an RRSP for 11 years. For the first 8 years it earned interest at a rate of 4.50% compounded semi-annually and for the next 3 years it earned interest at a rate of 6.80% compounded semi-annually.
a. Calculate the accumulated value of his investment at the end of the first 8 years.
b. Calculate the accumulated value of her investment at the end of 11 years.
c. Calculate the amount of interest earned from the investment.