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Mathematics 11 Online
OpenStudy (anonymous):

4. A DVD store charges $4.70 for each day, d, a DVD is rented. The store also gives you a dollar off if the DVD is returned before 5 days. a. Write a rule to represent the rental charges C. b. How much will you pay if you return the DVD after 4 days? 7 days?

OpenStudy (anonymous):

For four days -- 4.70(4) - 1 = $17.80 For seven days -- 4.70(7) = $32.90

OpenStudy (anonymous):

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