Final answer:
To compute the number of units available for sale in March, we add up the units in the beginning inventory and the units purchased during the month. The exact number of units available for sale in March is not provided. However, we can calculate the ending inventory on March 31 using the sales information provided. The cost assigned to ending inventory using specific identification cannot be determined without the exact ending inventory.
Step-by-step explanation:
To compute the number of units available for sale in March, we need to add up the units in the beginning inventory and the units purchased during the month. In this case, the beginning inventory is not given, so we cannot compute the exact number of units available for sale in March. However, we can calculate the number of units in ending inventory on March 31 using the sales information provided. The March 9 sale consists of 80 units from the March 1 purchase and 340 units from the March 5 purchase.
Therefore, the total number of units sold from March 1 to March 9 is 80 + 340 = 420 units. Similarly, the March 29 sale consists of 40 units from the March 18 purchase and 120 units from the March 25 purchase. So, the total number of units sold from March 1 to March 29 is 420 + 40 + 120 = 580 units. To calculate the ending inventory on March 31, we subtract the total units sold from the units available for sale. However, the total units available for sale is not given, so we cannot compute the exact ending inventory for March.
Regarding the cost assigned to ending inventory using specific identification, we assign the costs of the specific units that are still in the inventory. Since the exact ending inventory is not provided, we cannot determine the cost assigned to it using specific identification.