Super Co had the following inventory activity during April: Unit Units Cost Beginning inventory 100 $8 Purchase (April 3) 60 12 Sale (April 10) 80 Purchase (April 18) 50 15 Purchase (April 23) 80 18 Sale (April 28) 100 1. Assuming Super uses a periodic LIFO cost flow assumption, ending inventory at April 30 would be Select ] 2. Assuming Super uses a perpetual LIFO cost flow assumption, ending inventory at April 30 would be Select 3. Assuming Super uses a periodic weighted average cost flow assumption, the weighted average cost per unit in April would be Select]