Well, you have to be given an interval. That is not an interval.
You should be given something like 

If you add those fractions up you'll just get a point on the number line.
Find the LCD for all of them which is 9/6 - 4/6 + 3/6 = 8/6 = 2/3
You'll end up with a point on 2/3 
 
        
        
        
50 - 9.20 = 40.80 so 40.80/ 4.25 = 9.6 but you can’t buy .6 of a snack so it’s 9
        
                    
             
        
        
        
I'm glad to hear that, but where is the math problem?
        
             
        
        
        
9514 1404 393
Answer:
  5
Step-by-step explanation:
Put the numbers where the letters are and do the arithmetic.
   5(3) -2(5) = 15 -10 = 5
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
55