37 Milford Company had 500 units of "Tank" in its inventory at a cost of $4 each. It purchased, for $2,800, 300 more units of "Tank". Milford then sold 400 units at a selling price of $10 each, resulting in a gross profit of $1,600. The cost flow assumption used by Milford O is LIFO. O is specific identification. O is FIFO. 1 pts O is weighted average