The Youngs bought a

$311,000

townhome. They made a down payment of

$42,000

and took out a mortgage for the rest. Over the course of

15

years they made monthly payments of

$2,269.98

on their mortgage until it was paid off.

a)	What was the total amount they ended up paying for the townhome (including the down payment and monthly payments)?

b)How much interest did they pay on the mortgage?