Answer:
a. 480
Explanation:
The computation of the economic order quantity is given below:

= 480 units
The carrying cost could be determined below:
= $4 × 25%
= $1
hence, the carrying cost is $1
Therefore the economic order quantity is 480
Thus, the correct option is a.
Answer:
1,2- See attached pictures.
3-
1. LIFO
2. Average
3. FIFO
Explanation:
See attached pictures.
Answer:
The correct option is a) Gross profit and ending inventory.
Explanation:
The inventory technique is a method of accounting for calculating the value of an inventory. The approach calculates the ending inventory balance by comparing the inventory cost to the merchandise price.
There are three methods for valuing inventory whic are FIFO (First In, First Out), LIFO (Last In, First Out), and WAC (Weighted Average Cost) (Weighted Average Cost). The gross profit and ending inventory are affected differently by each of these costing methods.
This implies that the selected inventory costing method impacts gross profit and ending inventory.
Therefore, the correct option is a) Gross profit and ending inventory.