Tech Engineering in TN is making a product for the overseas market. The following cost data for the product has been compiled. Item Cost Selling price (r) $167 Materials and purchased parts $25/unit cost Direct labor cost 2 hrs at $20 per hour Fixed cost $1,400,000 Given that the variable cost per unit (v) includes direct labor cost, the overhead expenses (which is charged at 80% of direct labor cost), and the cost of materials and purchased parts: a) Write the total cost relation. b) Calculate the breakeven volume for this product. c) Determine the total profit and profit per unit if 30,000 units are sold d) To reduce the breakeven volume to 15,000 units, what should be the selling price