Mr. Smith is purchasing a $ XXXXXXXXXXhouse. The down payment is 20 % of the price of the house. He is given the choice of two mortgages: a) 25-year mortgage at a rate of 7 % (i) the monthly payment:...

Mr. Smith is purchasing a $ 170000 house. The down payment is 20 % of the price of the house.
He is given the choice of two mortgages:


a) 25-year mortgage at a rate of 7 %

(i) the monthly payment:
(ii) the total amount of interest paid:

b) 15-year mortgage at a rate of 7 %.

(i) the monthly payment:
(ii) the total amount of interest paid: