XYZ company has sales of $300,000, a contribution margin ratio of 40%, and a target profit of $30,000. If 15,000 units were sold, what is the variable cost per unit? Select one: a $10.00 b. none of the given answers. c. $8.00 d. $12.00 e. $7.50 Which of the following statements is true? Select one: a. The high-low method of deriving an estimated cost line uses all the data points available. b. in approximating the cost function, the account analysis classifies costs based upon an industrial engineer's evaluation of production methods, and material, labor, and overhead requirements. c. The most complex of the cost estimation methods is the high-low method. d. The high-low method is used to derive an estimated line of cost behavior by graphically connecting the two cost amounts identified with the highest and lowest volume levels. e. Engineering approach approximates cost function by classifying each account as either variable or fixed based on the analyst's knowledge of how the account behaves