addison has her car fix for $170. if the parts were $80, what is the hourly rate for labor if she was billed for an hour and half?let e=the hourly charge.
lfryerda | Certified Educator
Since the hourly rate is e, and the base cost is $80, with the total cost being $170, we need to solve the equation:
`1.5e=90` divide by 1.5
The hourly charge is $60/hour.