FedPrimeRate.com reported the median price of a home sold in the United States in November 2017 was $199,600. Pat Radigan wants to purchase a new home for $317.500. Pat puts 20% down and will finance the remainder of the purchase. Compare the following two mortgage options he has: 20 years at 6.5% or 25 years at 70%. (Use Table 15.1) (Round your intermediate calculations and final answers to the nearest cent.) a. Calculate Pat's monthly payment for both the 20 and 25 year mortgage? Monthly payment for 20 year mortgage Monthly payment for 25 year mortgage b. Calculate Pat's total cost of interest for both the 20 and 25 year mortgage? Total cost of interest for 20 year mortgage Total cost of interest for 25 year mortgage