Black Comp;any uses tghe weighted average method in its process costing system. The company's ending work in process inventory consists of 6,000 units, 75 percent complete with respect to materials and 50 percent complete with rspect to labor and overhead. If the total dollar value of the inventory is $80,000 and the cost per equivalent unit for labor and overheade is $6.00, what is the cost per equvalent unit for materials.