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Mathematics 16 Online
OpenStudy (anonymous):

The rule below shows how the cost of renting a bicycle depends on how long it is rented. Multiply the number of hours by $9, then subtract $12. If C = cost in dollars and h = number of hours, which equation expresses the rule above? a) C(h) = 12(h - 9) b) C(h) = 9(h - 12) c) C(h) = 9h - 12 d) C(h) = 12h - 9

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