A family purchased a new ski boat for $18,500. The loan agency required a 10% down payment and financed the balance for 36 months with an APR of 6.0%. Round all answers to the nearest cent (i. e. to the hundredths place). a) Determine the amount of the down payment. $ b) Determine the total finance charge using the table from section 11.4. $ c) Determine the monthly payment for the loan. $ d) Before the 24th payment, the family decides to pay the loan back early. Use the "Actuarial Method for Unearned Interest formula" to determine the amount of interest the family would save. $