Assume that you are the Marketing Manager tor Macy's responsible tor a product line of audio equipment. It's the year end and your boss asked you for a recap of the year's performance. Here are the results of the year. Macy's invested $10,000 in merchandising aids to boost sales. Question 3 (Mandatory) (4 points) What is the weighted average margin of our assortment ? A Question 4 (Mandatory) (4 points) What is the unit sales needed to cover our investment ? A Question 6 (Mandatory) (4 points) For every dollar of advertising, how many dollars of sales are required to promote this line? A