Mathematics, 13.10.2020 23:01 jaccamoboy

Heather purchased a prepaid phone card for $15 . Long distance calls cost 16 cents a minute using this card. Heather used her card only once to make a long distance call. If the remaining credit on her card is $12.76 , how many minutes did her call last?

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Heather purchased a prepaid phone card for $15 . Long distance calls cost 16 cents a minute using th...