Hello!
[tex]\bf Answer:[/tex]
It took [tex]\boxed{ \bf 3.5}[/tex] hours to repair the car.
[tex]\bf Explanation:[/tex]
First, subtract the cost of car parts from the total amount spent:
490 - 210 = 280
Divide this by cost of labor per hour:
280 ÷ 80 = 3.5
