Prepare journal entries to record the following transactions for a retail store. The company uses a perpetual inventory system and the gross method. Apr. 2 Purchased $4,200 of merchandise from Lyon Company with credit terms of 2/15, n/60, invoice dated April 2, and FOB shipping point. 3 Paid $240 cash for shipping charges on the April 2 purchase 4 Returned to Lyon Company unacceptable merchandise that had an invoice price of $450 17 Sent a check to Lyon Company for the April 2 purchase, net of the discount and the returned merchandise. 18 Purchased $7,700 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 $7,700 owed on the April 18 purchase. 28 Sent check to Frist paying for the April 18 purchase, net of the allowance and the discount