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Mathematics, 19.10.2020 14:01 smallsbjs

Isabel purchased a prepaid phone card for $20. Long-distance calls cost 18 cents a minute using this card. Isabel used her card only once to make a long-distance call. If the remaining credit on her card is $14.24, how many minutes did her call last?

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Isabel purchased a prepaid phone card for $20. Long-distance calls cost 18 cents a minute using this...
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