Accounting problems. Please explain your methodology and steps used for problems 1-3

1. Beginning Inventory has 30,000 units, 100% complete for IBM, and 75% complete for CC. 100,000 units were added during the period. Ending inventory had 20,000 units, 100% complete for DM and 60% complete for CC. Using average costing, calculate the total equivalent units for DM 2. Beginning Inventory has 30,000 units, 100% complete for DM, and 75% complete for CC. 100,000 units were added during the period. Ending inventory had 20,000 units, 100% complete tor DM and 60% complete for CC. Using average costing, calculate the total equivalent units for CC. 3. Beginning Inventory has 30,000 units, 100% complete for DM, and 75% complete for CC. 100,000 units were added during the period. Ending inventory had 20,000 units, 100% complete for DM and 60% complete for CC. Using FIFO costing, calculate the total equivalent units for DM