4) 4) Straight-line depreciation is a typical example of a: A) step-variable cost. B) curvilinear cost. C) fixed cost. D) mixed cost. E) variable cost. 5) 5) Macon Company has a variable selling cost. If sales volume increases, how will the total? cost and the variable cost per unit behave? Total Variable Cost A. Increase B. Increase C. Increase D. Remain constant E. Decrease Variable Cost Per Unit Increase Remain constant Decrease Decrease Increase A)Choice A B)Choice B c) Choice C D)Choice D E)Choice E 6) Which of the following costs changes in direct proportion to a change in the activity 6) level? A) Variable cost. B) Fixed cost. C) Step-fixed cost. D) Semivariable cost. E) Step-variable cost. 7) What type of cost exhibits the behavior shown below? 7) Manufacturing Volume (Units) Total Cost 150,000 150,000 Cost Per Unit 50,000 80,000 $ 3.00 1.88 A) Semivariable cost. B) Variable cost. C) Mixed cost. D) Step-variable cost. E) Fixed cost