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Mathematics, 15.09.2021 14:00 daya88
Virgin Mobile offers a cell phone plan that charges 30 dollars per month for up to 500 minutes of use, plus
10 cents for each text message (source: www. virginmobile. com). Assuming that a user does not exceed the
monthly 500 minutes of phone time, find a function that describes the total cost of using the phone for one
month as a function of the number of text messages, t.
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Answers: 3
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