You've gotten a job that involves a bit of a commute, and you feel you need to replace your old clunker with a more reliable car. You find a car whose payments you can afford--$15,000 at $345 a month. Whew! The interest rate is 5%. Calculate the first four months' payments, including a. how much interest you are charged that month, b. how much principal you pay off that month, and c. what your remaining balance is after the payment.

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