Jorge wants to buy a boat. The boat sells for $9000 cash. Jorge will pay $2000 down, and the rest in equal monthly installments over the next 4 years. The nominal annual interest rate j(12) = 6%. a) How much are Jorge's monthly payments? (2 decimals) b) If Jorge doubles his down payment, how much will his payments be? (2 decimals) c) True or false: If the interest rate went down, the size of Jorge's monthly payments would go down