Daniel and Jan agreed to pay $548,000 for a four bedroom colonial home in Waltham, Massachusetts, with a $60,000 down payment. They have a 30-year mortgage at a fixed rate of 6.00%. a. How much is their monthly payment? (Do not round intermediate calculations. Round your answer to the nearest cent.) Monthly payment b. After the first payment, what would be the balance of the principal? (Do not round intermediate calculations. Round your answers to the nearest cent.) Portion to- Payment number Balance of loan outstanding Principal Interest