Quantitative reasoning 

Please help:(

Suppose that on January 1 you have a balance of ​$4000 on a credit card whose APR is 19​%, which you want to pay off in 2 years. Assume that you make no additional charges to the card after January 1.

A: what is your monthly payment?

B: When the card is paid​ off, how much will you have paid since January​ 1?

C: What percentage of your total payment​ (part b) is​ interest?

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