Math 123, Mortgages, how much will snoop have to finance?

Suppose Calvin Cordozar Broadus, Jr. (aka Snoop Doggy Dogg) is considering moving his family to Manhattan.  His real estate agent has managed to locate a penthouse apartment that overlooks Central Park for $2.4 million. 1. He will have $2.1 million from the sale of his current home as a down payment.  Snoop would like to finance the remainder of the cost and his banker has presented two options:  a 30-year fixed-rate mortgage at 8% or a 20-year fixed-rate mortgage at 7.5%.

• how much will he have?