Mathematics
Mathematics, 26.12.2019 17:31, carsondelane13

Last month a phone company charged $0.07 per minute for the first 300 minutes of calling time and $0.05 per minute for each minute of calling time in excess of the first 300 minutes. for how many minutes of calling time was bob charged by the phone company last month?

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Last month a phone company charged $0.07 per minute for the first 300 minutes of calling time and $0...

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