Answer:
-2
Step-by-step explanation:
I think this was the question you were talking about.
 
        
             
        
        
        
If nine plus 10 is 21 and the square root of the sun is blank
        
                    
             
        
        
        
The first one, the opposite of any negative number is the same number but positive...and vise versa.
        
                    
             
        
        
        
Answer:
$343
Step-by-step explanation:
To get 30% of 490 we divide 30% by 1
30% ÷ 1 = 147
Now, we subtract 490 by 147
490 - 147 = 343
 
        
             
        
        
        
The answer is 
3^66483360316461674016