Answer:B
Explanation:In a function only one input is used there this is not a function
        
             
        
        
        
Natural selection <span>is the process where organisms are more likely to reproduce. When they reproduce, they pass on traits to the next generation. Over time this process allows organisms to adapt to their environment. Giving what natural selection means, I believe the answer is D. Evolution does NOT always improve organisms. 
I hope this helps:)</span>
        
             
        
        
        
Answer:
231
Step-by-step explanation:
 =
42÷2= 21 
9×21= 189 
189 students total 
42 6th graders 
 
        
                    
             
        
        
        
I think your answer would be A?