How do i solve this? At May 1, 2008, Treeline Company had beginning inventory consisting of 400 units with a unit cost of $6. During May, the company purchased inventory as follows: 200 units at $7 300 units at $8 The company sold 500 units during the month for $12 per unit. Treeline uses the average cost method. 1. The average cost per unit for May is 2. The value of Treelines inventory at May 31, 2008 is 3. Treelines gross profit for the month of May is