Cox Corporation produces a product with the following costs as of July 1 20xx Material Labour Overhead $4 per unit 5 per unit 4 per unit nas Assuming Cox sold 23.000 units during the last six months of the year at $20 each, beginning inventory at these costs on July was 1.000 units. From July 1to December 31, 20xy, Cox produced 25,000 units. These units had a material cost of $5 per unit. The costs for labour and overhead were the same a. If Cox uses FIFO inventory accounting, what would be the gross profit for the period? Gross profit $ b. If Cox uses FIFO inventory accounting. What is the value of ending inventory Ending inventory