The answer is 15 or 3 I think but I'm not sure
        
             
        
        
        
For this case we are going to assume the following:
 m: whole number greater than zero.
 n: integer greater than zero.
 Where,
 n> m
 According to these assumptions, the percentage of growth is given by the following formula: 
 Answer:
 Answer:
 the number of students did grow by:
  
 
        
        
        
1) Plug the numbers in : (5) - (3)
2) Subtract 5 - 3 = 2
Therefore, the answer is 2
        
                    
             
        
        
        
He will only need approximately 118 cartons 
Hope this helps!