Part A: Cami has an unpaid balance of $1,321 on her credit card. What is the finance charge for a month if her interest rate is 1.3% per month?Part B: If her interest rate was raised to 2.8%per month, what is her new finance charge for a month with the same unpaid balance?Part C: What is the difference in the finance charge that she will pay in a month with a 2.8% interest rate compared to a 1.3% interest rate?

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