Billie L.

asked • 12/13/22

i need help as fast as possible!

Justin purchased a prepaid phone card for $25.25

. Calls cost 8

 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−25.250.08x

How much credit is left on the card after Justin uses it for 20

 minutes of calls?

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