Please can you help with solving this math problem.

Crane sells books, movies, and magazines to a wide customer base. In a typical month, about 40% of its sales volume is from books, 40% from movies, and 20% from magazines. The selling price and cost information for each of these product categories is as follows. In addition, Crane incurs facility and administrative costs that average $26,000 per month. (a) Find the weighted-average contribution margin per unit for this company. (Round answer to 2 decimal places, e.g. 15.25.) Weighted-average contribution margin $ per unit Determine how many units from each product category Crane must sell to break even. (Round answers to 0 decimals, eg. 15.) Books units Movies units Magazines units eTextbook and Media Attempts: 0 of 2 used (c) Crane normally sells 2,700 books each month. Given the current sales mix, how many movies and magazines must it normally sell in a month? Books units Movies units Magazines units