3. For 15 points. If the following information is given about a specific company Selling price per unit $ 19.50 Fixed Expenses Selling and Administration $ 13,050 Interest Expenses $ 4,250 Variable Expenses per unit Cost of Goods Sold $6.35 Selling and Administrative $ 5.75 a. What is the company's contribution margin? b. How many items the company must sell in order to break even? What is it in dollars term? c. At the end of the month, instead of breaking even, the company would like register a profit that is 60 % off Interest expenses amount, what number of units must they sell