Dutch Pantry Inc. operates full-service family restaurants in eastern states. To ensure consistent quality, many of the items served in the restaurant are prepared in a central-food processing plant. Classify each of the following costs and expenses of the food processing plant as either variable or fixed.

1. Garbage collection expense
2. Salad dressing
3. Office salaries
4. Depreciation of equipment (straight-line method)
5. Cooking oil
6. Experimental costs (includes salaries of Nutritionists)
7. Cleaning supplies
8. spices
9. Water
10. Property taxes
11. Electricity