The plastic flowerpots company has two manufacturing departments, molding and packaging. at the beginning of the month, the molding department has 2,000 units in inventory, 70% complete as to materials. during the month, the molding department started 18,000 units. at the end of the month, the molding department had 3,000 units in ending inventory, 80% complete as to materials. units completed in the molding department are transferred into the packaging department. cost information for the molding department for the month follows: beginning work in process inventory (direct materials) $ 1,200 direct materials added during the month 27,900 using the weighted-average method, compute the molding department's (a) equivalent units of production for materials and (b) cost per equivalent unit of production for materials for the month. (round "cost per equivalent unit of production" to 2 decimal places.)