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Mathematics 16 Online
OpenStudy (anonymous):

A phone company offers two monthly charge plans. In Plan A, the customer pays a monthly fee of $25 and then an additional 9 cents per minute of use. In Plan B, the customer pays a monthly fee of 30.50 and then an additional 8 cents per minute of use. For what amounts of monthly phone use will Plan A cost less than Plan B? Use for the number of minutes of phone use, and solve your inequality for m .

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