Listed as follows are various costs found in businesses. Classify each cost as a fixed or variable cost, and as a product and/or period cost.

1. Wages of administrative staff
2. Shipping costs on merchandise sold
3. Wages of workers assembling computers
4. Cost of lease on factory equipment
5. Insurance on factory
6. Direct materials used in production of lamps
7. Supervisor salary, factory
8. Advertising costs
9. Property taxes, factory
10. Health insurance cost for company executives
11. Rent on factory