Gastlys refrigerator has stored its last frozen pizza; i.e., Gastlys refrigerator is broken and no longer works. Gastly dashes to the nearest appliance store and looks at a new refrigerator for $1253.99. Unfortunately, Gastly doesnt have enough money in its rainy day fund to pay for the refrigerator. Gastly then take out an add-on loan for 3 years at an annual rate of 23%. (a) In general, what will be the monthly payments? (b) If the lender offers a first month minimum payment of $42.84 and assume the method of calculating the minimum payment is: the finance charge plus some percentage of the unpaid balance ($1252.99 for the first month). Find the percentage of the unpaid balanced use to calculate the minimum payment.