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Illinois Department of Transportation plans to resurface the US 51 Business Route from Osage Street to Raab Street in Summer 2021. Republic Service, Ltd., has been hired to provide the pavement material of 50,000 yd. It is estimated that the job will take 6 weeks and the contractor has identified two locations for pavement preparation. The cost detail of these two sites are the following: Cost Factor Site A Average hauling distance to the job site Weekly rental of the prep site $500 $1,200 Flag person (S150/person-week) 1 person 2 people Site B 5 miles 4 miles Cost to set up and remove equipment $12,000 $25,000 Hauling expense $3 yd -mile $3 yd -mile (a) Please compare these two sites in terms of fixed cost, variable cost, and total cost and explain why the contractor should choose a certain site. (15 points) (b) Based on the result of (a), the contractor will be paid $13 per cubic yard of pavement material delivered to the job site. How many cubic yards of pavement material will the contractor have to deliver before starting making a profit? (10 points)