Engineering Homework Help

In a bulding construction project, 7,500 feet of insulated ductwork is required. The duckwork is made from 14-gauge steel costing $8.50 per pound. The 24-inch-diameter duct weights 15 pounds per foot. Insulation for the duckwork costs $10 per foot. Engineering design will cost $16,000, and labor to install the ductwork will amount to $180,000. What is the total cost of the installed ductwork for this project?