If a firm sells 40,000 units and the contribution margin on the firm's single product is $4.00 per unit and fixed costs are $60,000, what will the firm's operating profit be at this level of sales volume? $30,000 O $145,000 $100,000 O $15,000 Question 4 2 pts If the price per unit decreases because of competition but the cost structure remains the same O the break-even point falls. O Not enough information is given to determine an answer. O the break-even point is unaffected. the break-even point rises