Answer:IS B OR D BUT I SAY D
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
The twins would be 13 years old. 
Step-by-step explanation:
21+21+21+13+13 = 89
 
        
                    
             
        
        
        
Where are the functions? 
your question is incomplete?
        
             
        
        
        
Answer:
square root of 29
Step-by-step explanation:
use the distance formula and then plug the numbers in, i got the sqrt(29) after i did that