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  • 11-04-2024
  • Business
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Hong purchased a prepaid phone card for $15.50. Calls cost 6 cents a minute using this card. The credit, C (in dollars), left on the card after it is used for x minutes of calls is given by the following equation: C = 15.50 - 0.06x. What is the credit left on the card after 10 minutes of calls?

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