18) The activity in Nolan Company's Blending Department for the month of April is given below Number of Units Labour and Overhead (Percentage Complete) Work in process inventory, April 1 8,000 50% I Started into process during the month 50,000 Work in process inventory, April 30 10,000 70% All materials are added at the beginning of processing in the Blending Department. 19) The equivalent units of production for labour and overhead for the month, using the weighted average method, are? A] 47.000 units. B) 50.000 units C) 51.000 units. D) 55.000 units