Please show work

1. Using the data below, determine the ending inventory amount assuming the weighted average method under periodic inventory system. Beginning inventory Purchsses Total cost of units available for sale Ending inventory s. $3,000 10 units 20 units $3,000 12 units b $1,200 d. None of these choices are correct 2. Using the dats below, calculate the cost of goods sold. Beginning inventory Inventory purchssed Net income Ending inventory Sales $1,000 3,000 40,000 2,000 185,000 s. $2,000 b. $4,000 c. $145,000 d. $185,000