a. Seller sold merchandise on account to the buyer, $4,750, terms 2/10, net 30, FOB shipping point. The cost of the merchandise is $2,850. The seller prepays the freight of $75. b. Buyer returns 5700 of merchandise as defective. The cost of the merchandise is $420. c Buyer pays within the discount period Journalize the entries for the seller using a perpetual inventory system. If no entry is required, select "No entry required and leave the amount boxes blank. If an amount box does not require an entry, leave it blank :