+687 Mrs. Solar receives the time estimates from each contractor. She wants to have the work done within 5 wk (200 work-hours) of when the work is started, and the sooner the better. She also wants to get a good deal.
(a) Contractor 1's time estimate:
210 h What is Contractor 1's total cost?
(b) Contractor 2's time estimate:
195 h What is Contractor 2's total cost?
(c) Contractor 3's time estimate:
185 h What is Contractor 3's total cost?
(d) Which contractor should Mrs. Solar choose? Explain your reasoning.
Contractor 1's formula is y=50x+200
Contractor 2's formula is y=150+55x'
Contractor 3's formula is y=60x
