Answer:
Yes
Explanation:
Then you will be mentaliy and physically healthy.
 
        
             
        
        
        
6.62074139421 should be exact (calculator). 
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Answer: Because of the difficult life on the prairie, the strong become stronger, and the weak become weaker.
Explanation:
 
        
             
        
        
        
17000
17,242 to the nearest thousand is 17,000