Math

A cellular phone company offers two types of monthly plans.
Plan A: 10 cents per minute
Plan B: a monthly fee of $10 plus 7.5 cents/minute
Define the appropriate variables and write an equation relating the cost and the numbers of minutes for each plan.

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  1. X = The # of min. used.
    C = Total cost.

    Plan A: C = 0.1x.
    Plan B: C = 0.075x + 10.

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