Answer:

Step-by-step explanation:
move the decimal so there is one non-zero digit to the left of the decimal point. the number of decimal places you move will be the exponent on the 10. if the decimal is being moved to the right, the exponent will be negative. if the decimal is being moved to the left, the exponent will be positive.
 
        
                    
             
        
        
        
You need to do 10 divided by 4. Each friend would get 2.5 pounds of a nut.
        
             
        
        
        
Answer:2.5 m/s 
Step-by-step explanation:
 
        
                    
             
        
        
        
5. Positive 
6. Negative 
7. Negative 
8. Positive 
9. No correlation 
10. Positive 
11. No correlation 
12. Positive