Supply had an inventory of 30 calculators at a cost of $18 each. The company uses a perpetual inventory system. During September, the following transactions at $22 each from Sunland Company. Sept. 9 Paid freight of $90 on calculators purchased from Sunland Company, Sept. 12 Sold 30 calculators costing $23 (indluding freight) for $35 each on account to Lee Book Store, terms n/30. Sept. 20 Sold 34 calculators costing $23 for $36 each on account to Orr's Card Shop, terms n/30. 2 a. Ask me