math

a cell phone company charges $10 per month, for up to 500 text messages, and $.15 for each additional text messages. Stanley was charged $14.50 last month for text messages. Write an equation to find the number of text messages over 500 he sent and received last month

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  1. 10 + 0.15t = 14.50

    0.15t = 4.50

    t = 30

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    Ms. Sue
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