Mathematics, 07.11.2020 01:40 tiaemrich146
teresa purchased a prepaid phone card for $30. Long distance calls cost 7 cents a minute using this card. Teresa used her card only once to make a long distance call. if the remaining credit on her card is $28.32, how many minutes did her call last?
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teresa purchased a prepaid phone card for $30. Long distance calls cost 7 cents a minute using this...
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