It would be 7x3 which would equal 21. Hope that helped!
        
                    
             
        
        
        
There are a couple of answers, it could be 2+10 or 3+9
        
             
        
        
        
The range of the function on the graph is all real numbers greater than or equal to 2 because the range of a function is what the value of y could be, and y begins at 2 and keeps increasing indefinitely.
Hope this helps!