Joseph invested $1,800 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 3.60% compounded semi-annually and for the next 6 years it earned interest at a rate of 6.20% compounded semi-annually. a. Calculate the accumulated value of his investment at the end of the first 5 years. $54,369.96$55,166.38$19,530.24$19,881.78 . Calculate the accumulated value of her investment at the end of 11 years. $54,369.96$55,166.38$46,369.47$19,881.78 c. Calculate the amount of interest earned from the investment. $15,566.38$14,769.96$10,678.69