Question 1 2 pts Sales are at 2,000 units at a cost of $20,000, then increase to 4,000 units at a cost of $40,000, and finally reach 6,000 units at a cost of $60,000. What are these costs called? fixed costs O committed costs O variable costs O semi-variable costs Question 2 2 pts If sales volume exceeds the break-even point, the firm will experience O an operating loss. o an operating profit. an increase in stock price, an increase in plant and equipment