Assignment 11 Close Date: Sun, Dec 3, 202311:59 PM Question 3 of 6 Amy purchased a house for $425,000. He made a down payment of 15.00% of the value of the house and received a mortgage for the rest of the amount at 5.52% compounded semi-annually amortized over 15 years. The interest rate was fixed for a 3 year period. a. Caiculate the monthly payment amount. Round to the nearest cent b. Calculate the principal balance at the end of the 3 year term