A 30 year mortgage for $150,000 with an annual interest rate of 4.8% has a monthly payment of Suppose that after 10 years, you decide to refinance to monthly. 9, $787.00. a 15 year mortgage at 3.9% interest compounded (a) If you refinance after 10 years find the balance of the loan for the remaining 20 years. (b) What will your new payments be if you refinance the remaining mortgage at 3.9% for 15 years? 10. Suppose you start making monthly payments of $250 into an annuity earning 4.8% interest compounded monthly. How many years will it take for this annuity to have a value of $100,000