There were 2,000 units in beginning inventory that were 70% complete with regard to conversion. During the month, 15,000 units were started, and 16,000 were transferred to finished goods. The ending work in process was 55% complete with regard to conversion costs, and materials are added at the beginning of the process. What is the total amount of equivalent units for materials and conversion at the end of the month using the weighted-average method?