A cell phone company develops a pay-as-you-go cell phone plan in which the monthly cost
Chapter 3, Problem 45(choose chapter or problem)
A cell phone company develops a pay-as-you-go cell phone plan in which the monthly cost varies directly as the number of minutes used. If the company charges $17.70 in a month when 236 minutes are used, what should the company charge for a month in which 500 minutes are used?
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