journalize entries for the following related transactions of greenville heating & air company: a. purchased $33,000 of merchandise from foster co., on account terms 2/10, n 30 b. paid the amount owed on the invoice within the discount period. c. Discovered that $6,600 of the purchased in (a) was defective and returned items, receiving credit for $6,468 ($6,600-($6,600 x2%) ).d. purchased $5,400 of merchandise from foster co., on account, terms n/30. e. received a refund from foster co., in (c) less the purchase in d.