Holling Inc. uses the weighted-average method in its process costing. The following data concern the company's Mixing Department for the month of December Materials Conversion Work in process, December 1 8,230 $ 9,228 Cost added to production in the Mixing Department during December $ 226,680 $ 284, 332 Equivalent units of production for December 10,000 9,500 $ Required: Compute the cost per equivalent unit for materials and conversion for the Mixing Department in December. (Round your answers to 2 decimal places.) Materials Conversion Cost per equivalent unit