James and Regina Jameson are looking to buy their first home. They have found a home costing $260,000 and will put 20 percent down. They can get a 7.2% loan for 30 years with a monthly payment of $1,412. Answer the following and show your calculation steps.

a. How much total interest would they pay over the 30 years?

b. How much of the very first payment would go to interest and how much to principal?