Natalie invested $1,600 at the beginning of every 6 months in an RRSP for 11 years. For the first 5 years it earned interest at a rate of 4.50% compounded semi-annually and for the next 6 years it earned interest at a rate of 5.20% compounded semi-annually. a. Calculate the accumulated value of his investment after the first 5 years. Round to the nearest cent b. Calculate the accumulated value of his investment at the end of 11 years. Round to the nearest cent >>