Answer:
20.8 or 20 4/5
Step-by-step explanation:
2 3/5 can be changed into 2.6 and then you multiply it by 8. if you need to put it back into fraction form from 20.8 it would be 20 4/5 
 
        
                    
             
        
        
        
Answer:
Image A shows a rotation.
 
        
             
        
        
        
Answer:
−135z 
2
 −2z
The 2 is representing Square
Step-by-step explanation:
(3z) 
2
 −4z+11−(12z) 
2
 +2z−11
Expand (3z) 
2
 .
3 
2
 z 
2
 −4z+11−(12z) 
2
 +2z−11
Calculate 3 to the power of 2 and get 9.
9z 
2
 −4z+11−(12z) 
2
 +2z−11
Expand (12z) 
2
 .
9z 
2
 −4z+11−12 
2
 z 
2
 +2z−11
Calculate 12 to the power of 2 and get 144.
9z 
2
 −4z+11−144z 
2
 +2z−11
Combine 9z 
2
  and −144z 
2
  to get −135z 
2
 .
−135z 
2
 −4z+11+2z−11
Combine −4z and 2z to get −2z.
−135z 
2
 −2z+11−11
Subtract 11 from 11 to get 0.
−135z 
2
 −2z