Mr. and Mrs. Thompson purchase a beachside condo for $415000, pay a down payment of 17%, and obtain a 30-year, fixed-rate mortgage at 3.000%.

Find the monthly mortgage payment.

Mr. and Mrs. Thompson purchase a beachside condo for $468000, pay a down payment of 22%, and obtain a 30-year, fixed-rate mortgage at 4.250%.

Find the total interest paid on the loan over the 30 years.