Your answer in cm would be 5,200,000. 
As 1km=100,000 cm
        
             
        
        
        
Answer:  The mean increases.
Step-by-step explanation:
The value of 0.9 mg/L is very low compared to a means of 7.6 mg/L with a standard deviation of 2.1 mg/L.  It seems as though it is an outlier that is suffiently different from the others, and probably should be dropped from the data set.  That would do 2 things:  1) the stabdard deviation will likely decrease, indicating a more confident data set, and 2) the mean vitamin C level will increase.
 
        
             
        
        
        
Answer:
k
Step-by-step explanation:
 
        
             
        
        
        
Answer:
30
Step-by-step explanation:
20x/100=6
cross multiply
600=20x
Divide both sides by the coefficient of x
600/20=x
x=30