Social Work homework help. 16.5 ProblemDiscount Mart , a major East Coast retailer, wants to determine the economic order quantity (see chapter 12 for EOQ formula) for irs halogen lamps. It currently buys all halogen lamps from Specialty Lighting Manufacturers, in Atlanta. Annnual demand is $2,000 lamps, ordering cost per order is $30, annual carrying cost per lamp is $12.a.)