Suppose your credit card has a balance of $4200 and an annual interest rate of 18%. You decide to pay off the balance over- two years. If there are no further purchases charged to the card. How much must you pay each month? How much total interest will you pay? Suppose your credit card has a balance of $3600 and an annual interest rate of 16.5%. You decide to pay off the balance over two years. If there are no further purchases charged to the card. How much must you pay each month? How much total interest will you pay