Answer:
No because she added 2 instead of 2398. She thought the 2 was separate because of the comma separating the 2 thousand. She also made a mistake by thinking she could add easily by adding 2 to 2398 to make 2400. 
 
        
             
        
        
        
Answer:
19
Step-by-step explanation:
1st you will use a^2+b^2=c^2
next you plug them  in so it would be a^2+16^2=25^2
next you would solve it to a^2+256=625
then you would get 369  and square root it  
and your answer will be  19.2.
 
        
             
        
        
        
<span>the answer will have to be the second choice cause it seems more correct</span>