please help solve this problem

*Problem 17-5A (Part Level Submission Polk Company manufactures basketballs. Materials are added at the beginning of the production process and conversion costs are incurred uniformly. Production and cost data for the month of July 2017 are as follows. Percent Production Data-Basketballs Work in process units, July 1 Units started into production Work in process units, July 31 Cost Data-Basketballs Work in process, July 1 UnitsComplete 60 % 460 1,330 540 40 % Materials $750 Conversion costs Direct materials Direct labor Manufacturing overhead 650 $1,400 2,030 1,260 1,280 (a1) Your answer is correct. Calculate the equivalent units of production for materials and conversion costs. Materials Conversion Costs ' Equivalent Units 790 1469 Attempts: 1 of 3 used "(a2) Your answer is incorrect. Try again. Calculate the unit costs of production for materials and conversion costs. (Round unit costs to 3 decimal places, e.g. 2.257.) Materials Conversion Costs Cost per unit .55 2.18 Attempts: 1 of 3 used "(a3) The parts of this question must be completed in order. This part will be available when you complete the part above. The parts of this question must be completed in order. This part will be available when you complete the part above