(9√25) /√50 = 9*5/√50 now simplify the denominator. √50=√25*√2=5√2
so (9*5)/(5√2) simplifies to 9/√2. To rationalize the denominator multiply both the numerator and the denominator by √2.
9√2/(√2*√2) = 9√2/2
        
                    
             
        
        
        
That would be B) B
hope it helps
        
             
        
        
        
The constant of proportionality (r) appears to be 3.
y = 3x . . . . . . . x = number of tickets sold; y = dollars collected
        
                    
             
        
        
        
Answer:
Yes, as there are 2 terms: x2 and a