3.a Credit Card Payments. Tobyis owes $9,000 on his credit card at graduation. His credit card charges him 24% interest annually compounded monthly. What will Tobyis' monthly payment be if he pays off the full amount in equal monthly payments over the next 4 years? Work: 3.b Credit Card Payments. Tobyis owes $9,000 on his credit card at graduation. His credit card charges him 24% interest annually compounded monthly but he can switch to a new lower interest rate card for free that will charge him only 12% annually compounded monthly. What will Tobyis' monthly payment be if he pays off the full amount in equal monthly payments over the next 4 years after switching to the new lower interest credit card? Work: - Aftarslin