Can someone help me answer QS5-5?

QS 5-4 Perpetual: Inventory costing with FIFO P1E A company reports the following beginning inventory and two purchases for the month of January. On January 26, the company sells 350 units. Ending inventory at January 31 totals 150 units. Units Unit Cost Beginning inventory on January 1 Purchase on January 9 Purchase on January 25 320 80 100 $3.00 3.20 3.34