Target costing and pricing. Donelan Products makes high-pressure lines for a variety of heavy road-improvement equipment. Donelan Products sells the lines to companies that manufacture and sell the equipment. The company's market research department has discovered a market for high-pressure lines used in automated manufacturing equipment, which Donelan Products currently does not produce. The market research department has indicated that lines would likely sell for $50 per foot. Assume Donelan Products desires an operating profit of 20 percent of sales. What is the highest acceptable manufacturing cost per foot for which Donelan Products would produce the lines