contestada

3. A plumber charges $70 per hour plus $15
for the call.
a) Write a function in function notation that
represents the plumber's total charge.
b) If the total charge was 155 dollars, how
many hours did the plumber work?

Respuesta :

Answer:

70x + 15

The Plumber worked 2 hours.

Step-by-step explanation

A) 70x + 15

B) So he was charged $155 if we subtract the $15 for the call we get 140 then if we divide $140 by 70 we get 2 hours

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