50 marks SECTION B: Answer one question 1. The Melina Corporation has gathered the following data on its copy machine costs for the eight months of the year. Month January February March April May June July August Number of Copies 60,000 50,000 70,000 90,000 80,000 100,000 120,000 110,000 Total Copy Cost $ 7,400 6,500 7,000 9,200 7,600 8,500 10,000 9,800 Required: Use 5 decimals on 'per unit' amounts. a. Using the high-low method, what is the variable cost per copy? b. Using the high-low method, what is the fixed cost per month? C. Using the high-low method, represent the cost function in the form, y = mx + b. d. Using your cost equation from part (c), provide your best estimate of the copy costs for September if 68,000 copies will be made. e. Why does your estimate differ from the $7,000 cost incurred in March, when 70,000 copies were made rather than 68,000? f. What is a mixed cost? What happens to a mixed cost as the level of activity changes