Sheila purchased ski equipment for $513 using a six-month deferred payment plan. the interest rate after the introductory period is 18.39%. a down payment of $125 is required as well as a minimum monthly payment of $65. what is the balance at the beginning of the seventh month if only the minimum payment is made during the introductory period? $47.01 $360.07 $0.00 $425.07