ations 1.) Calculate the monthly payments for each of the following fixed-rate mortgages. 6.55 a) $150,000 mortgage at 2.25% amortized over 15 years. 12 x 15 yrs = 140 payment b) $235,000 mortgage at 3.5 % amortized over 25 years. c) $170,000 mortgage at 4% amortized over 20 years. 2.) Moira Diaz purchases a home for $190,000. She makes a down payr $20,000 and takes out a fixed-rate mortgage at 2.25% for the balanc purchase price. The mortgage is to be amortized over 10 years. a) Determine Moira's monthly mortgage payments. b) Calculate the amount of interest Moira pays during the 10-y amortization period.