Mathematics, 03.06.2021 01:40, smortandsons

Susan purchased a prepaid phone card for $20. Long distance calls cost 24 cents a minute using this card. Susan used her card only once to make a long-distance call. If the remaining credit on her card is $9.92, how many minutes did her call last?

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Susan purchased a prepaid phone card for $20. Long distance calls cost 24 cents a minute using this...