3. Stephanie intends to contribute $2500 to her RRSP at the end of every six months. She has already accumulated $2,000 in the account. If the RRSP earns 9% compounded semi-annually for the first seven years and 7% compounded semi-annual thereafter, what amount will she have in the plan after 20 years? (7 Marks) 4. Andrew makes monthly payments of $350.67 that will pay off his mortgage loan in 10 years and 7 months. The interest rate on his mortgage is 2.8% compounded quarterly. What is the current balance on the loan? (4 marks)