Olivia invested $1,900 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 4.30% compounded semi-annually and for the next 6 years it earned interest at a rate of 5.70% compounded semi-annually.

Calculate the accumulated value of her investment after the first 5 years.

Calculate the accumulated value of her investment at the end of 11 years.

Calculate the amount of interest earned from the investment.