Gibbs Garrett
05/14/2023 · Middle School
Susan purchased a prepaid phone card for \( \$ 15.50 \). Calls cost 6 cents a minute using this card. The credit, \( C \) (in minutes of calls is given by the following. \( C=15.50-0.06 x \) How much credit is left on the card after Sulann uses it for 50 minutes of calls? \( \square \) dollars
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Credit left: $12.50
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