9. A product has fixed costs of $20 000, variable costs of $8 per item and a selling price of $12 per item. What is the total cost of producing 3000 items? b. What is the total cost of producing 5000 items? What is the profitloss that would be made with sales of 4000 items? a d. What is the profit/loss that would be made with sales of 9000 items? What is the break-even volume of sales