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The general ledger of Oates Company has the following work in process account. WIARK INI DROIFCS_FINISHINA Production records show that there were 2,000 units in beginning inventory, 50% complete; 6,000 units started, and 4,500 units transferred out. The beginning work in process had conversion costs of $3,300. The units in ending inventory were 60% complete. Materials are added at the beginning of the process. Instructions Answer the following questions. (a) How many units are in process at June 30? (b) What is the unit conversion cost for June? (c) What is the conversion cost in the June 30 inventory