Answer: the electrician's hourly labor rate is $29.5
Step-by-step explanation:
Let x represent the electrician's hourly labor rate.
electrician charges a $40 dollar fee to make a house call plus an hourly rate for labor. This means that the total bill for a job that takes y hours would be expressed as
xy + 40
If the total bill for a job that takes 2 hours comes to $99, it means that
2x + 40 = 99
2x = 99 - 40
2x = 59
x = 59/2 = 29.5