Answer:
100cm
Step-by-step explanation:
the difference between of 5cm 
 
        
             
        
        
        
First, solve the parenthesis
Remember to follow PEMDAS, and the left-> right rule
12/3 = 4
4 x 2 = 8
8 + 3 = 11
11 - 7 = 4
Square the remaining number
4² = 4 x 4 = 16
16 is your answer
hope this helps
 
        
             
        
        
        
Answer:
900
Step-by-step explanation:
3 squared is 9. 9 time 100 is 900
 
        
             
        
        
        
Step-by-step explanation:
y=-27
...................
 
        
             
        
        
        
X=105°
Y=105°
Z=105°
let the angle below 75° which is the 4th Street be A
75°+A=180°[being adjacent angle]
A=105°
X=A[Verticall opposite angle]
Z=A[Corresponding angle]
Y=X[alternate angle]