I need help with this please. I'm confused. Need explanation if possible thank you!

Molly's Greenhouse supplies bedding plants and other gardening products to a variety of stores across Alberta and also has a local greenhouse open to the public. Molly uses a perpetual inventory system. Transactions for the business are shown below: Z_lrchased 500 decorative hanging baskets from Planters R us, on at a cost of $27 each, terms 2/10, n/30. FOB destination. May 2 The correct company paid cash for the $120 shipping charges. 4 Sold 250 hanging baskets to a hardware store in the city, on account, for a total invoice price of $12,500. Terms are 1/10, m'30 and the cost was $27 per basket. Molly paid the shipping charge of $75 on same day. Received a credit from Planters R us for the return of 50 hanging baskets that had defective hangers. 20 of the baskets from the sale of May 4 were returned to the greenhouse for a full refund because the customer did not have enough room to store them. Made a payment on account for the balance owing to Planters R us for the purchase of May 2. 12 Received a cheque for the appropriate from the hardware store for the sale on May 4. 14 Post to the Merchandise Inventory and Cost of Goods Sold accounts and calculate the ending balances. Assume beginning inventory is $1,300. (Post entries in the order displayed in the problem statement.) Mercha n dise Inventory Cost of Goods Sold