2. July Petersen Book Store entered into the transactions listed below. In the journal provided, prepare Petersen's necessary entries, assuming use of the perpetual inventory system. 6 Purchased $1,600 of merchandise on credit, terms n/30. 8 Returned $100 of the items purchased on July 6. 9 Paid freight charges of $90 on the items purchased July 6. 19 Sold merchandise on credit for $4,400, terms 1/10,n/30. The merchandise had an inventory cost of $2,700. 22 Of the merchandise sold on July 19, $300 of it was returned. The items had cost the store $150. 28 Received payment in full from the customer of July 19. 31 the merchandise purchased on July 6. General Journal Ref. Account Debit Credit