Davis owns a moving business and one of his trucks needs a new transmission along with some other repairs that will cost a total of $4785. He can use his credit card with an annual rate of 15.9% compounded daily that offers 2% cash back on all purchases made on the card or he can sign up with a new card company that is offering a $100 rebate the first time the card is used. This card has an annual rate of 14.2% compounded daily. Which card would be less expensive and by how much less if he can afford to pay back $350 per month?(use financial calculator)

a. Existing Card

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b. New Card

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c. Least expensive card