a. Fabric for sofa coverings b. Wood for framing the sofas c. Legal fees paid to attorneys in defense of the company in a patent infringement suit, $25,000 plus $160 per hour d. Salary of production supervisor e. Cartons used to ship sofas f. Rent on experimental equipment, $50 for every sofa produced 9. Straight-iine depreclation on factory equipment h. Rental costs of warehouse, $30,000 per month 1. Property taxes on property, plant, and equipment j. Insurance premiums on property, plant, and equipment, $25,000 per year plus $25 per $25,000 of insured value over $16,000,000 k. Springs for seat cushions 1. Consulting fee of $120,000 paid to efficiehcy specialists m. Electricity costs of $0.13 per kilowatt-hour n. Salesperson's salary, $80,000 plus 4% of the selling price of each sofa sold o. Foam rubber for cushion fillings p. Janitorial supplies, $2,500 per month q. Employer's FICA taxes on controller's salary of $180,000 r. Salary of designers s. Wages of sewing machine operators t. Sewing supplies hains. The following costs are incurred in the production anc