Petersen Book Store entered into the transactions listed below July 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 Paid for the merchandise purchased on July 6 Prepare Petersen's necessary entries, assuming use of the perpetual inventory system. (Credit account titles are automatically indented when the amount is entered. Do not indent manually.) Date Account Titles and Explanation Debit Credit July. 6 19 To record credit sale)