The anwser is 17 idk what she did but that’s wrong
        
                    
             
        
        
        
Hey!
The area of the board is 60,000 centimeters.
1 meter = 100 centimeters
2 meters = 200 centimeters
3 meters = 300 centimeters
Area = length × width
300 × 200 = 60,000
One cup covers 1,000 centimeters. To cover 60,000 centimeters, divide 60,000 by 1,000.

That means Arella needs 60 cups

 
        
                    
             
        
        
        
5×4=20 is closer to 24.9344. 

Let's try placing the decimals after the hundreds place.

It works.
There is more than one possibility.


 
        
             
        
        
        
I sure I think it is A. -2. 5