Answer:
Step-by-step explanation:
Rational
 
        
                    
             
        
        
        
Since you did not specify the place value, I am assuming that it is the ones place.
Since half of a hundred is 50, and you round up when its half or higher, the greatest whole number would be 49.
Final answer: 67449
        
             
        
        
        
Answer:
Every decade, the number of species decays by a factor of 0.0834.
Step-by-step explanation:
Let be  ,
,  . The decay rate per decay is deducted from the following relation:
. The decay rate per decay is deducted from the following relation:




Every decade, the number of species decays by a factor of 0.0834.