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Math·Algebra·Linear functions

easy

For a certain job, an electrician charges $70 per hour for labor plus $125 for parts. Which function represents the total amount, in dollars, the electrician will charge for this job if it takes $x$ hours?

A

$f(x)=70x-125$

B

$f(x)=70x+125$

C

$f(x)=70x$

D

$f(x)=x+125$