Wildhorse's Motors had the following purchase transactions in December. Dec 4 Purchased $5,200 of merchandise on account from Engine Central, terms 4/15, net 30 . 7 Wildhorse returned $1,700 of merchandise because he changed his mind and wanted to order a different type of engine 16 Wildhorse paid the balance owing to Blossom Central. Prepare the journal entries to record the purchase transactions on the books of Wild horse's Motors using a periodic inventory syatem