Emphasis Heading 1 11 Normal Strong Paragraph . The Duchess Bakery makes and sells fresh cookies. If the cookies sell for $1.60 cach and they cost $0.85 to make plus an additional 20% of the selling price for selling and administrative variable costs, the variable cost per cookie is (rounded): a $055 b. $1.06 $.$0.92 d. $117 7. The method used to separate mixed costs that uses only two data points (even if more reliable points are available) is called: a regression analysis buscatter graphing the engineering approach d the high-low method 8. 9. After all costs have been covered by the firm's sales, the amount remaining is the called the a yanable, gross profit kucost of goods sold, contribution margin suyapable, contnbutionmargin d. fixed, gross margin In the basic mathematical equation, the Yrepresents: a total cost b fixed cost Sunut vanable cost d activity level The main difference between a contribution income statement and a functional income statement is that the functionalincome statement does not classify costs as: 2. product and period b. product and mixed c. penodand fixed 10. wa