Moving to another question will save this response. Question 5 wages paid to machine operators on an assembly line are classified as a a. period cost b. direct manufacturing labor cost c. manufacturing overhead cost d. direct material cost Moving to another question will save this response. Question 4 What is the Gross Margin for 2018? Beginning finished good, 1/1/2018 $90,000 Ending finished goods, 12/31/2018 77,000 Cost of goods sold 306,000 Sales revenue 456,000 Operating expenses 101,000 $150,000 $355.000 $49,000 $13.000 Moving to another question will save this response. Question 3 Variable costs are always indirect costs include most personnel costs and depreciation on machinery are never considered a part of prime cost increase in total when the actual level of activity increases A Moving to another question will save this response