svolume changes, which of these costs could be considered a mixed cost? a. sales commission expense b. assembly line labor c. salaries of the accountant d. utilities at the manufacturing plant 9. The relevant range is a. A relatively wide range of sales where total variable costs remain the same. b. A relatively wide range of sales where all costs remain the same. c. A relatively narrow range of production where total FC are expected to remain the same d. A relatively wide span of production where total FC are expected to remain the same 10. Which one of the following items is relatively unimportant in decision making? a. Opportunity costs b. Accruals and prepayments c. Net cash flow d. Sunk costs 11. The term "Sunk Costs" refers to: a. Past costs that are now irrevocable. b. Costs that are directly influenced by unit manager. c. Costs that should be incurred in a particular production process. d. Benefits lost from rejecting the next best alternative 12. The term "Cost" refers to a. An asset that has given benefit and is now expired. b. The price of product sold or services rendered. c. The value of the sacrifice made to acquire goods or services. d. An asset that has not given benefit and is now expired. 13. If contribution margin is positive? a. Profit will occur b. Both a profit and loss are possible c. Profit will occur if the fixed expenses are greater than the contribution margin d. A loss will occur if the contribution margin is greater than fixed expenses 14. Which of the following costs would be a fixed cost for Carl; a confectionery manufacturer? a. Sugar b. Electricity costs to run the manufacturing machines c. Hourly paid wages d. Supervisor's salary