Prepare journal entries to record each of the following purchases transactions of a merchandising company. Assume a perpetual inventory system. Purchased 1.300 units of product at a cost of $20 per unit. Terms of the sale are 3/10. n/60: the invoice is dated November 5. Returned 45 defective units from the November 5 purchase and received full credit. Paid the amount due from the November 5 purchase, less the return on November 7