Answer:
a.$5,667
Step-by-step explanation:
According to the weighted average cost method, all units on inventory must be priced equally. If the company had 1,000 units at $1.00 and purchased an additional 5,000 units for $5,800, the total cost per unit is:

If 5,000 units were sold, the cost of goods sold is:

Palmer Company's cost of goods sold was $5,667.