The May 1 work in process inventory consisted of 45,000 pounds with $66,600 in materials cost and $46,350 in conversion cost. The May 1 work in process inventory was 100% complete with respect to materials and 30% complete with respect to conversion. During May, 337,000 pounds were started into production. The May 31 inventory consisted of 124,000 pounds that were 100% complete with respect to materials and 70% complete with respect to conversion. The company uses the weighted-average method in its process costing system. Required: 1. Gompute the Grinding Department's equivalent units of production for materials and conversion in May. 2. Compute the Grinding Department's costs per equlvalent unit for materials and conversion for May. 3. Compute the Grinding Department's cost of ending work in process inventory for materials, conversion, and in total for May. 4. Compute the Grinding Department's cost of units transferred out to the Mixing Department for materials, conversion, and in total for May