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 $6,200 of merchandise from Lyon Company with credit terms of 2/15, n/60, invoice dated April 2, and FOB shipping point. 3 Paid $390 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 $11,700 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 $600 allowance toward the $11,700 owed on the April 18 purchase. 28 Sent check to Frist paying for the April 18 purchase, net of the allowance and the discount