Question 3 of 6 < > View Policies Current Attempt in Progress -/4 Sandhill Co. sells a snowboard, EZslide, that is popular with snowboard enthusiasts. Below is information relating to Sandhill Co's purchases of EZslide snowboards during September. During the same month, 101 EZslide snowboards were sold. Sandhill Co. uses a periodic inventory system. Date Explanation Units Unit Cost Total Cost Sept. 1 Sept. 12 Inventory 10 $112 $1,120 Purchases 50 115 5,750 Sept. 19 Purchases 57 116 6,612 Sept. 26 Purchases 21 117 2,457 Totals 138 $15,939