Michelle's credit card has a 0% introductory apr for 12 months and after that a 19.9% apr for purchases. michelle makes purchases of $150 and plans to pay off her total balance before the grace period ends. her card has an annual membership fee of $0. how much will michelle pay to have a $0 balance on her credit card?

Michelle will need to pay $150 before the first 12 months. After 12 months is up her balance will have 19.9% added to the balance at that time. She needs to pay $12.50 a month for that first year.

example: If she only paid $10 a month at the end of the year she would still owe $30 and will now owe $35.97 because of the APR%