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A plumber charges a $70 call-out fee and then $90 per hour. Write an expression for the total cost of calling a plumber for x hours.

A plumber charges a $70 call-out fee and then $90 per hour. Write an expression for the total cost of calling a plumber for x hours.
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3 votes
A plumber charges a $70 call-out fee and then $90 per hour. Write an expression for the total cost of calling a plumber for x hours.

asked
User Jarrod Baker
by
8.2k points

1 Answer

2 votes

Answer:

f(x)=90x+70

Explanation:

answered
User Blackjacx
by
8.5k points
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