Juliana has contributed $2,923.00 every year for the last 9 years into an RRSP fund. The interest earned by these deposits was 7% compounded annually for the first 4 years and 8% compounded annually for the last 5 years. How much money is currently in the RRSP?

Maria saves $18 at the end of each week and deposits the money in an account paying 11% compounded monthly. How much will Maria accumulate in 3 years? How much of the accumulated amount is interest?