Mary Ann pays a monthly fee fo

timer Asked: Dec 2nd, 2015

Question description

Mary Ann pays a monthly fee for her cell phone package which includes 700 minutes. She gets billed an additional charge for every minute she uses the phone past the 700 minutes. During her first month, Mary Ann used 26 additional minutes and her bill was $37.79. During her second month, Mary Ann used 38 additional minutes and her bill was $41.39.

a. Write a function that represents the total monthly cost C(x) of Mary Ann's cell phone package, where x is the number of additional minutes used.

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