Answer:
21 cm
Step-by-step explanation:
The perimeter is the length of the outside of a shape. In this case, we can simply add up all the edges and multiply by .5(the length of one edge). 
Horizontal Edges: 22
Vertical Edges: 20
Total: 42
Perimeter = 
 
        
             
        
        
        
Answer:
I'm not sure, but I think they spend 2$ for each
Step-by-step explanation:
The total items they buyed was 45. The total amount of money they spend was 95. 95 divided by 45 is 2.111111111111111111111 . So if you find 2 as one of your options, that's probably it.
 
        
             
        
        
        
The answer is 1/2. Count how many a out of the total.
        
                    
             
        
        
        
This is the answer: X= 118