Mathematics, 14.11.2019 03:31 ereyes181

Aphone company charges a flat rate of $15 to make phone calls for a month. they charge $0.10 per minute for each call made. if the want to make at least $60 from one customer, how many minutes do they have to talk

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Aphone company charges a flat rate of $15 to make phone calls for a month. they charge $0.10 per min...