Adults pay = $33.60
Children pay = $16.80 (it's half price but if they take a round trip it's double the price. Therefore it's $16.80) then multiply both by two and add them together. 
2 ($33.60+$16.80) = $100.80
        
             
        
        
        
Sure! What’s the question (sorry if you provided an image I appear to not be able to see it)
        
             
        
        
        
The answer is :


and the only number among the choices that is less than 8.75 is -6
hope it's true
 
        
        
        
Y=2x i guess!!!!! good luck
        
             
        
        
        
Iiiiiiiiiiiiiiiiiiiiii ammmmmmm not sure