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14. Ira has $100 in his savings account. He is looking at two savings plans. Under plan A, he will increase his account balance by $10 a year. Under plan B, he will increase his account balance by 10% each year.

     a. Write an equation for the amount Ira will have with plan A.

     b. Write an equation for the amount Ira will have with plan B.

     c. To the nearest hundredth, how much would Ira save in 3 years under plan A? How much would he save under plan B?