I need help with this problem. Im not able to do it and i have been doing the same problem for an hour now

Feb. 10. Sold merchandise inventory on account for $4,200. Payment terms were 2/15, 1/30. These goods cost the company $2,100. Begin by preparing the entry to journalize the sale portion of the transaction. Do not record the expense related to the sale. We will do that in the following step. Date Accounts Debit Credit Feb. 10 Accounts Receivable 4,116 Sales Revenue 4.116 Credit Now journalize the expense related to the February 10 sale-Cost of goods, $2,100 Date Accounts Debit Feb. 10 Cost of Goods Sold 2.100 Merchandise Inventory 2.100 Feb. 28: Received cash from February 10 customer in full settlement of their debt. Date Accounts Debit Credit Feb. 28 i More Info Feb. 3 Purchased $3,500 of merchandise inventory on account under terms 1/10, n/EOM and FOB shipping point. 7 Returned $800 of defective merchandise purchased on February 3. 9 Paid freight bill of $600 on February 3 purchase. 10 Sold merchandise inventory on account for $4,200. Payment terms were 2/15, n/30. These goods cost the company $2,100. 12 Paid amount owed on credit purchase of February 3, less the return and the discount. 28 Received cash from February 10 customer in full settlement of their debt Print Done