Classify each cost as being either variable or fixed with respect to the number of units produced and sold. Also classify each cost as either a period or a product cost. Cost Item Variable or Fixed? Product or Period? 1. Salary of a supervisor overseeing production of printers at Dell. 2. Commissions paid to automobile salespersons. 3. Hamburger buns in a Wendys restaurant. 4. Insurance on IBMs corporate headquarters. 5. Advertising by a dental office. 6. Insurance on a Bausch & Lomb factory producing contact lenses. 7. Depreciation of factory lunchroom facilities at a General Electric plant. 8. Steering wheels installed in BMWs. 9. Shipping desks via UPS by a manufacturer to its customers. 10. Apples processed and canned by Del Monte.