Please provide step by step help for calculating each question

Stoltenberg Co had the following information for the month of June Work in process beginning Inventory, June 1 Units transferred in Work in process ending inventory, June 30 3,100 units 15,700 units 3,900 units Beginning work in process inventory is 30 percent complete as to conversion Ending work in process inventory is 50 percent complete as to conversion Materials are added at the end of the process How many units were started and completed in June? Multiple Choice 11,800 3.700 o 13,750 16.850 17,650 Submit Universal Automotive Group is a maker of engines for high performance cars and uses a process costing system. The following information pertains to the final department of manufacturing for Universal's most popular engine the Atomic Beginning work-in-process (401 completed) Transferred in Normal spoilage Abnormal spoilage Good units transferred out Ending work-in-process (25% completed) Conversion costs in beginning inventory Current conversion costs 540 units 1.700 units 150 units 150 units 1.500 units 440 units $190,500 $846,630 Universal Automotive Group calculates separate costs of spoilage by computing both normal and abnormal spoiled units. Norma spolage costs are reallocated to good units and abnormal spolage costs are charged as a loss. The units of the Atomic that are spoiled are the result of defects not discovered before inspection of finished units. Using the weighted average method, answer the following question: What are the equivalent units for conversion costs? Multiple Choice 1910 units 1940 units 2,090