<span>These are monopoly market structures. This is where the person or company selling items does not face competition and is the only person or company selling the items with no competitor that has a close substitute. This is an imperfect kind of competition.</span>
        
             
        
        
        
Answer:
e. Vertical marketing system.
 
        
             
        
        
        
$6.00 + 1.50(x) ≤ $12.00
1.50 x ≤ $12 - 6
1.50 x ≤ 6
x = 6.00÷1.50
x= 4 hours
        
             
        
        
        
Answer:
A. because it can impact an individual 
Explanation: