Journal Entries for Merchandise Transactions on Seller's and Buyer's Books-Perpetual System Riggs Distributing Company had the following transactions with Arlington, Inc., during the month of November: Nov. 10 Riggs sold and shipped $7,000 worth of merchandise ($4,500 cost) to Arlington, terms 2/10, n/30. 2 Arlington, Inc. paid freight charges on the shipment from Riggs Company, $450. 14 Riggs received $600 of merchandise returned by Arlington ($420 cost) from the November 10 sale. 19 Riggs received payment in full for the net amount due on the November 10 sale 24 Arlington, Inc. returned goods that had originally been billed at $400 ($280 cost). Riggs issued a check for $392. Required Prepare the necessary journal entries (a) on the books of Riggs Distributing Company and (b) on the books of Arlington, Inc. Assume that both companies use the perpetual inventory system