Liz purchased a house for $350,000. She made a down payment of 20.00% of the value of the house and received a mortgage for the rest of the amount at 6.72% compounded semi-annually amortized over 20 years. The interest rate was fixed for a 5 year period. a. Calculate the monthly payment amount. Round to the nearest cent > b. Calculate the principal balance at the end of the 5 year term. Round to the nearest cent c. Calculate the monthly payment amount if the mortgage was renewed for another 5 years at 3.22% compounded semi-annually