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20 March, 10:18

A communications company charges a one-time set up free of $44.99 and a monthly fee of $29.99 for internet service. The company is offering a 25% discount on the monthly fee for the first year.

A). Write an expression to determine the cost, after the discount and before tax, of M

months of service during the first year.

B). An 8% sales tax is added to the total cost. Rewrite the expression in part A to include the sales tax.

C). What is the total amount a customer will pay including tax, for his first four months of internet service with the communications company?

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  1. 20 March, 13:04
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    A. 44.99 + 0.75 (29.99) x = 44.99 + 22.49x

    B. 1.08 (44.99 + 22.49x)

    C. 1.08 (44.99 + 22.49 (4)) = 1.08 (44.99 + 89.96) = 1.08 (134.95) = 145.75
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