Hi! 
If I have done this correctly, then the answer is: 
2 million is 80% of 2.5
That means that 20% of the water evaported.
        
             
        
        
        
19-25=-6 that is your answer
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
 
        
             
        
        
        
A pentagon is a regular polygon with five equal sides and five equal interior angles. Also, it has five vertices. To draw the line that would divide the figure equally into two, we simply have to draw a line from one vertex and then extend the line to the opposite side.
Since, there are five vertices then, she will be able to draw five. 
<em>Answer: 5</em>