Prepare journal entries to record each of the following merchandising transactions assuming that the buyer uses the periodic inventory system and the gross method. Apr. 2 Purchased $4,600 of merchandise from Lyon Company with credit terms of 2/15, n/60, invoice dated April 2, and FOB shipping point. 3 Paid $300 cash for shipping charges on the April 2 purchase. 4 Returned to Lyon Company unacceptable merchandise that had an invoice price of $600. 17 Sent a check to Lyon Company for the April 2 purchase, net of the discount and the returned merchandise. 18 Purchased $8,500 of merchandise from Frist Corp. with credit terms of 1/10, n/30, invoice dated April 18, and FOB destination. 21 After negotiations, received from Frist a $500 allowance toward the $8,500 owed on the April 18 purchase. 28 Sent check to Frist paying for the April 18 purchase, net of the allowance and the discount.