Suppose that on January 1 you have a balance of ​$5200 on a credit card whose APR is 21​%, which you want to pay off in 1 year. Assume that you make no additional charges to the card after January 1.
a. Calculate your monthly payments.
b. When the card is paid​ off, how much will you have paid since January​ 1?
c. What percentage of your total payment from part​ (b) is​ interest?
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Part 1
a. The monthly payment is ​$

enter your response here.
​(Do not round until the final answer. Then round to the nearest cent as​ needed.)