Answer:
(a) 
(b) 
Step-by-step explanation:
(a)  can also be written as
 can also be written as  x
 x 
the  = ± y
 = ± y
Therefore :
 = ±
 = ±
since it was given that y < 0 , then the factor will be 
(b)  can also be written as :
 can also be written as :  x
 x 
Therefore , one of the factor is 
 
        
             
        
        
        
Answer:
 I think its A.
Step-by-step explanation:
 
        
             
        
        
        
Answer:
29 degrees
Step-by-step explanation:
Both angles are the same.
 
        
                    
             
        
        
        
Answer:
29 child 55 adult
Step-by-step explanation:
x+y=84
22x+48y=3278
x=29,y=55
hope it will help, if not, sry, u can comment below to ask me!