The Mitchells bought a $219,000 townhome. They made a down payment of $47,000 and took out a mortgage for the rest. Over the course of 30 years they made monthly payments of $1031.24 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? 5 ?