Rio Company uses the perpetual inventory system. For the current month, the beginning inventory consisted of 1,200 units that cost $12 each. During the month, the company made two purchases on account: 500 units at $13 each and 2,000 units at $13.50 each. Rio also sold on account 2,150 units for 43,000$ that cost 26,975$ during the month. Instructions: Prepare the journal entries to record only the purchases and sales in the books of Rio using the perpetual system.