Journalize entries for the following related transactions of Manville Heating \& Air Company: a. Purchased $90,000 of merchandise from Wright Co. on account, terms 2/10,n/30. b. Paid the amount owed on the invoice within the discount period. c. Discovered that $18,000 of the merchandise purchased in (a) was defective and returned items, receiving credit for $17,640[$18,000($18,0002%). d. Purchased $10,000 of merchandise from Wright Co. on account, terms n/30. e. Received a refund from Wright Co. for return in (c) less the purchase in (d)