Adnan Company uses process costing. At the beginning of the month, there were 8,000 units in process, 90% complete with respect to material and 80% complete with respect to conversion costs. 40,000 units were started during the month and 40,000 units were completed. The units in ending Work-In-Process Inventory were 70% complete with respect to material and 10% complete with respect to conversion costs. How many equivalent units will be used in calculating the cost per unit for materials?