You just put I line in the middle and you times high times base the do the other one then add your answers  up that should be your finely answer 
        
             
        
        
        
Answer:
25
Step-by-step explanation:
5 + 5 + 5 + 5 + 5 = 25
 
        
                    
             
        
        
        
Answer:
x = 12.1
Step-by-step explanation:
20 − (z + 7) = 0.9
Distribute the minus sign
20 -x -7 = .9
Combine like terms
13 -x = .9
Subtract 13 from each side
-x = -12.1
x = 12.1
 
        
                    
             
        
        
        
Step-by-step explanation:
△BAC ≅ △EDF (given)
Therefore,
BC=EF
x-4=19
x=23
 
        
             
        
        
        
The answer is negative 5 because you subtract 12 from each side to get 5x=-25 and -25 divided by 5 is negative 5