Part 1Ellen has maxed out her credit card at $13,500 and vows not to make any other credit card purchases. Her credit card company charges 1.21% interest per month, and the minimum monthly payment is all interest due plus 3% of the principal balance. How much of the balance can Ellen pay down if she pays the minimum payment only for 4 months?

Part 2Harry had an unpaid balance of $1797.89 on his credit card statement at the beginning of September.He made a payment of $280.00 during the month, and made purchases of $371.05.If the interest rate on Harry's credit card was 3.5%per month on the unpaid balance, find his finance charge and the new balance on October 1.