13 Virgil Corp. has a selling price of $30 per unit, and variable costs of $20 per unit. When 12,000 units are sold, profits equaled $55,000. How many units must be sold to break-even? 0 4,000 0 12.000 6,500 05,500 QUESTION 14 Cost structure refers to: O a company's break-even point. O whether fixed costs are covered by the contribution margin. O how a company uses variable versus fixed costs to perform operations. O where funds are stored. QUESTION 15 Cost-volume-profit analysis assumes that total costs behave in a O Curvilinear O Linear O Exponential O Regressive fashion.