Smith Concrete Company owns enough ready-mix trucks to deliver up to 145,000 cubic yards of concrete per year (considering each truck's capacity, weather, and distance to each job). Total truck depreciation is $250,000 per year. Raw materials (cement, gravel, and so on) cost about $32 per cubic yard of cement.

Required:

1. On your own paper, prepare a graph for truck depreciation. Use the vertical axis for cost and the horizontal axis for cubic yards of cement. Select the following amounts from the graph.

Depreciation cost of truck if it delivers 30,000 cubic yards of concrete in one year. $

Depreciation cost of truck if it delivers 70,000 cubic yards of concrete in one year. $

2. On your own paper, prepare a graph for raw materials. Use the vertical axis for cost and the horizontal axis for cubic yards of cement. Select the following amounts from the graph.

Cost of raw materials for 2,000 cubic yards of concrete. $

Cost of raw materials for 5,000 cubic yards of concrete. $

3. Assume that the normal operating range for the company is 90,000 to 96,000 cubic yards per year. Classify truck depreciation and raw materials as variable or fixed costs.

Truck depreciation	Fixed
Raw materials cost	Variable