Question 18 (1 point) Which of the following are costs that are not relevant to a current or future decision? Irreversible costs. Relevant costs. Sunk costs. None of the above. Question 19 (1 point) Which of the following costs are relevant to a current or future decision? Irreversible costs. Irrelevant costs. Sunk costs. None of the above. Question 20 (1 point) Dylan believes that avoidable costs cannot be eliminated. Is Dylan right? Yes No Question 21 (1 point) JS, ES, & DL Inc can buy a part for $14.20 or make it. If they make it the direct materials cost $2.50, direct labor $12 per hour, and overhead is applied at the rate of $5 per direct labor hour. It takes 30 minutes to make the part. They should: Call an accountant Make the part Buy the part Punt Question 22 (1 point) MO & ON Inc know that the quantity of individual products sold at various sales prices is know as the