Jimenez Hill
03/19/2023 · High School

Abdul purchased a prepaid phone card for \( \$ 40.00 \). Calls cost 25 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. \( C=40.00-0.25 x \) How much credit is left on the card after Abdul uses it for 30 minutes of calls?

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The credit left on the card after 30 minutes of calls is $32.50.

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