Mathematics, 13.11.2020 20:00 mdaniella522
Kathy’s father thinks she spends too much time on the phone. He wants to see how much time she spent talking last month, but he does not have the phone bill; he has only his checkbook, which tells him that her bill last month was $110. The phone company charges a monthly base fee of $50, plus ten cents per minute. How many minutes did Kathy spend on the phone last month?
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Kathy’s father thinks she spends too much time on the phone. He wants to see how much time she spent...
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