use the knowledge from the chapter to answer the following questions. (Please show your calculation process). 1. A retailer pays a wholesaler $24.00 for an item and then sells it with a 25 percent markup. What is the retailer's selling price? 2. A college marketing club" printed 1,000 "We're Number 1" bumper stickers for sale at $3.00 each as a fund-raiser. Its fixed costs were $500, and the variable cost for each sticker was $.50. What is the club's average cost? 3. If a firm's total fixed cost is $400,000 and its fixed cost contribution per unit is $10, what is its break-even in units