.45x+.55x=200
Combine like terms
1x=200
So x is 100
Or you can do 45%+55%=100% 
And 100% of 200 is 200
        
             
        
        
        
Answer:
The 2nd and 3rd boxes are right, that is :-
* 2b is a term 
 
 and 
* 9 is a constant 
 
        
             
        
        
        
Total tickets sold :
14 + 6 = 20
fraction of child tickets sold = 14/20
then, we convert this fraction to %.
14/20 = 70/100
( multiply by 5 )
percentage = 70%
        
                    
             
        
        
        
Answer:
The correct answer is the last option.
Step-by-step explanation:
 When you have a fraction with complex numbers, the first step to simplify is to multiply up and down the conjugate of the denominator, this will eliminate the complex part of the denominator, and in this way you can separate the expression in its real and complex part.
 For the expression:
 
 The denominator conjugate is 4 + 2i
 When multiplied, the denominator is:
 