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Charlene's long distance telephone service charges $7.50 per month plus $0.12 for each minute. Her bill last month was $13.02. What equation represents the amount of her last bill, and how many minutes did Charlene use last month?
A.
7.50 + $0.24m = 13.02; m = 101 minutes
B.
7.50 - $0.12m = 13.02; m = 66 minutes
C.
7.50 + $0.12m = 13.02; m = 46 minutes
D.
7.50 - $0.24m = 13.02; m = 171 minutes

Respuesta :

Charlene used 46 minutes

Answer:

C. 7.50+$0.12m=13.02; m=46 minutes

Step-by-step explanation:

7.50+.12m=13.02

-7.50           -7.50

.12m=5.52

.12      .12

m=46 minutes

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