Quite a broad question. 10/2 you divide by 2 which equals 5. Is that your question?
        
                    
             
        
        
        
Answer:
its c
Step-by-step explanation:
i took it
 
        
             
        
        
        
The answer is 22 Bc it is
        
                    
             
        
        
        
Answer:
z ≤ 7
Step-by-step explanation:
9x - 7 ≤ 28 + 4x
9x - 4x ≤ 28 + 7
5x ≤ 35
x ≤ 35 / 5
x ≤ 7
 
        
                    
             
        
        
        
8.a)
A= (1,1) A’= (3,3)
B= (4,6) B’= (12,18)
C= (6,1). C= (18,3)
8b.) 
A= (1,1) A’(0,5,0.5)
B= (4,6) B(2,3)
C= (6,1). C(3,0.5)
Hope this helped ! :)