Answer:
D : Company 4
Step-by-step explanation:
Since all the painting companies require 5 hours to paint the truck, and they all will use the same amount of materials, then you have to choose the company that charges the lowest rate per hour:
- Company 1 charges $57 per hour x 4 hours = $285 + $240 = $525
- Company 2 charges $52.50 per hour x 4 hours = $262.50 + $240 = $502.50
- Company 3 charges $48.95 per hour x 4 hours = $244.75 + $240 = $484.75
- Company 4 charges $46.20 per hour x 4 hours = $231 + $240 = $471 ⇒ lowest price