Could someone explain these answers, please Thanks!

Quick Inc. uses the periodic inventory system June1 June5 June 14 On hand, 50 units @ $7.50 each Purchased 115 units@ S7.55 each Purchased 75 units@ $7.60 each Total cost of goods available for sale $375.00 868.25 570.00 During June, Quick sold 130 units If Quick uses the FIFO inventory method, the amount assigned to the June 30 cost of goods sold would a. $828.00 b. S979.00 c. $985.25 d. $834.25 If Quick uses the FIFO inventory method, the amount assigned to the June 30 ending inventory would a. $828.00 b. $979.00 c. $985.25 d. $834.25 If Quick uses the weighted average cost inventory method, the amount assigned to the June 30th cost of goods sold would be a. $831.07 b. $982.18 c. $1,016.38 d. $797.15 If Quick uses the weighted average cost inventory method, the amount assigned to the June 30h ending inventorv would be a. $831.07 b. S982.18 c. $1,016.38 d. $797.15 If Quick uses the LIFO inventory method, the cost of goods sold for June would be a. $834.25 b. $979.00 c. S985.25 d. $828.00