Jacole J.

asked • 09/12/19

Linear equations

The cost of a long-distance telephone call is given by the function below, where m is the length of the call in minutes.

C(m) = 0.05m + 0.75

Determine how long a phone call can be made for $3.25.

 A. 

45 minutes

 B. 

55 minutes

 C. 

50 minutes

 D. 

65 minutes


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