Answer:
10
Step-by-step explanation:
if u take 5x2 u get your answer
 
        
                    
             
        
        
        
Are the 63x and the y being added or multiplied?
        
             
        
        
        
One approach that might be a great help would be if you would look 
at the choices ... those things at the bottom of the question that you 
didn't give us.
-- One leg is 3 times the length of the other leg.
-- Any right triangle that has one leg three times as long as the other 
leg is similar to this triangle.  
I'll bet that if you look through the choices, you'll find one there.
        
                    
             
        
        
        
You have to subtract $40 from $68 make sure the larger number is in the front. If you did that all you would get $28.