Answer: Please refer to Explanation
Step-by-step explanation:
1. Wood used in the production of furniture. VARIABLE COST
2. Fuel used in delivery trucks. VARIABLE COST
3. Straight-line depreciation on factory building. FIXED COST
4. Screws used in the production of furniture. VARIABLE COST
5. Sales staff salaries. FIXED COST
6. Sales commissions. VARIABLE COST
7. Property taxes. FIXED COST
8. Insurance on buildings. FIXED COST
9. Hourly wages of furniture craftsmen. VARIABLE COST
10. Salaries of factory supervisors. FIXED COST
11. Utilities expense. MIXED COST
12. Telephone bill. MIXED COST