Answer:
B
Step-by-step explanation:
their is 5 different colors and they look the about the same and you spin it 100 times so 
5 divided by 100 you would get 20
 
        
             
        
        
        
42/2=21 (is the sum of both lengths)
2x+11=21
2x=10
x=5
length= 16
width=5
        
             
        
        
        
Same thing here
3z+5=8
ALWAYS REMEMBER, YOU SHOULD SUBTRACT/ADD THE WHOLE NUMBERS FIRST!
Subtract 5 from both sides
3z=3
Divide both by 3
z=1
        
                    
             
        
        
        
Answer:
x=5
Step-by-step explanation:
 −3x − 3 +7x = 17
Combine like terms
4x -3 = 17
Add 3 to each side
4x-3 +3 =17+3
4x = 20
Divide by 4
4x/4 = 20/4
x = 5