Lucy purchased a house for $425,000. She made a down payment of 10.00% of the value of the house and received a mortgage for the rest of the amount at 6.82% compounded semi-annually amortized over 25 years. The interest rate was fixed for a 7 year period. a. Calculate the monthly payment amount. $0.00 Round to the nearest cent b. Calculate the principal balance at the end of the 7 year term. $0.00 Round to the nearest cent c. Calculate the monthly payment amount if the mortgage was renewed for another 7 years at 5.02% compounded semi-annually