Hi I need help on what is the answer for this process costing problem. Answers with explanation is highly appreciated. I hope that you can help me

Problem

PROCESS COSTING PROBLEM 1 Department II of Charity Manufacturing Company presents the following production data for the month of May, 2011: Opening inventory, 3/8 completed 4, 000 units Started in process 13, 000 units Transferred 9, 000 units Closing inventory, > completed 4, 000 units % completed 4, 000 units 1. What are the equivalent units of production (conversion) for the month of May, 2011 under FIFO method? 2. What are the equivalent units of production (conversion) for the month of May, 2011 under average method