# A computer repair technician charges $50 per visit plus$30/h for house calls. a) Write an algebraic expression that describes the service charge for one household visit. b) Use your expression to find the total service charge for a 2.5-h repair job.

A computer repair technician charges $50 per visit plus$30/h for house calls.
a) Write an algebraic expression that describes the service charge for one household visit.
b) Use your expression to find the total service charge for a 2.5-h repair job.
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wornoutwomanC
a) Let x be the number of hours. The total charge is $50, plus$30/h times the number of hours:
$50+30x$
b)Substitute x=2.5 to the expression in part a:
$50+30\left(2.5\right)=50+75=125$
So, the total service charge is \$125.
Jeffrey Jordon