For this case we have:
Be a function of the form 
Where:

If we want to find f (-2), we substitute  , then:
, then:

Since we have a negative root, the result will be given by complex numbers. By definition:

So:

Answer:

 
        
             
        
        
        
To answer this question here is what you would do. I can't give you the exact answer because there is not a line plot attached.
Count the number of X's above the number 5 1/2 feet. Put this number over the total number of X's you count (including the 5 1/2s). 
This is your answer when you write these 2 pieces of information in fraction form.
        
             
        
        
        
Answer:
67 people were still left waiting in line.
Step-by-step explanation:
If there are 65 plus 11 more, there'd be 76 people in line.
I guess the fact that it says "waiting in two lines" can be completely discarded because bottom line is 9 people got their drinks- which means that "waiting in two lines" means nothing.
76 - 9 = 67 people still left waiting in line.
 
        
             
        
        
        
2.08. If you want to round, then it will be 2.09.
Hope this helps! ;)
        
             
        
        
        
225, the square root of 225 is 15