6. If production volume increases from 8,000 to 10,000 units, a. total costs will increase by 20 percent. b. total costs will increase by 25 percent. c. total variable costs will increase by 25 percent. d. mixed and variable costs will increase by 25 percent. 7. An equipment lease that specifies payment of $1,000 per month plus $5 per machine hour used is an example of a a. fixed cost b. variable cost c. mixed cost d. step cost 8. Baker Company sells its product for E60. In addition, it has a variable cost ratio of 40 percent and total fixed costs of 19,000. What is the break-even point in units for Baker Company? a. 375 units b. 3,600 units c. 250 units d. 2,400 units