Please help, this is wrong

Prepare journal entries to record each of the merchandising transactions assuming that the company records purchases using the gross method and a periodic inventory system. (If no entry is required for a transaction/event, select "No journal entry required" in the first account field.) Apr. 1 Sold merchandise for $4,800, with credit terms n/30; invoice dated April 1. The cost of the merchandise is $2,880. Apr. 4 The customer in the April 1 sale returned $560 of merchandise for full credit. The merchandise, which had cost $336, is returned to inventory. Apr. 8 Sold merchandise for $1,900, with credit terms of 1/10, n/30; invoice dated April 8. Cost of the merchandise is $1,330. Apr. 11 Received payment for the amount due from the April 1 sale less the return on April 4. View transaction list View journal entry worksheet No Date General Journal Debit Credit 1 Apr 01 Accounts receivable 4,800 Sales 4,800 2 Anr 01 Cost of goods sold 2880 View transaction list View journal entry worksheet No Date General Journal Debit Credit 1 Apr 01 Accounts receivable 4,800 Sales 4,800 2 Apr 01 2,880 Cost of goods sold Inventory 2,880 3 Apr 04 Sales returns and allowances 560 Accounts receivable 560 4 Apr 04 336 Inventory Cost of goods sold 336 5 Apr 08 Accounts receivable 1,900 Sales 1,900 6 Apr 08 1,330 Cost of goods sold Inventory 1,330 7 Apr 11 Cash 4,240 Accounts receivable 4,240