Cross multiply to get 8k+24=56 then solve for k so subtract 24 from each side to get 8k=32 so k=4
        
                    
             
        
        
        
You can buy 85 sweaters. Plze mark me brainiest:)
 
        
             
        
        
        
In scientific notation, it would be 2x10^3.
An easy trick to help remember when it is a multiple of 10 is that you do the numbers that aren't zero (2) times 10 and the exponent is how ever many zeros there are after the other numbers (3).
        
                    
             
        
        
        
-6 is a rational I believe