During January 2017, Alpha Company began & completed work on its only Job No. A1. On January 2, Alpha purchased, on account, $15,800 of raw materials and placed into the work order a total of $12,000 of direct material. Alpha also used 2,000 machine hours, and employed $19,200 of direct labor costs. Alpha Company applies manufacturing overhead at a predetermined rate of $10 per machine hour used. Use this information to prepare the January 31 General Journal entries, without explanations, for the: (Round any final dollar answers to the nearest whole dollar. All journal entries except the purchase of raw material & sales will have the transaction date of January 31, 2017):