Chloe wants to pay off her credit card debt of $7316.48 that has an APR of 19.73%. She is paying $350 per month. a)Using the finance charge formula(charge=r*(balance-payments+purchases)), what would be the credit card balance(to the nearest dollar) after one year? b)If she increased her monthly payment by $50 to $400 per month, what would be the credit card balance(to the nearest dollar) after one year? Please show solutions step by step