Noah Company uses process costing procedures. The activity for Noah Company's Mixing department for August is given below. All material is added at the beginning of the process. The Weighted-Average Method is used. Units Conversion % Work in process inventory, August 1 8,000 50% Started in process during August 50,000 Work in process inventory, August 31 10,000 70% Material Conversion $ Work in process inventory, August 1 $ 40,000 $ 30,000 Costs added during August $ 250,000 $ 355,000 Required: Calculate the TOTAL UNIT COST of a completed unit for the month of August. a. $ 11.64 b.$ 12,50 c. $12.60 d. $ 12,00