Answer:
Option D, I agree with neither Elena nor Lin
Step-by-step explanation:
The remaining part of the question is attached herewith
Solution 
As we can see in the image  
ED is perpendicular to AB and BC is perpendicular to AB
Thus, as per the Pythagoras theorem,  
AC^2 = AB^2 + BC^2  
14^2 = 6^2 + BC^2
BC^2 = 196-36 = 160
BC = 12.649 OR 12.65 
Hence, option D
I agree with neither Elena nor Lin
 
        
             
        
        
        
Answer:Sorry but none where c there e but no c .
But it would be 16c +2f +13 .
Step-by-step explanation:you need to combine like terms 
which are 13c +3c =16c and 9f- 7f=2f and 15-2 =13 .
Hope it helps .
 
        
             
        
        
        
you can conclude that lines A and B are parallel to each other
 
        
             
        
        
        
Answer:
188
Step-by-step explanation:
10*5*4 - 6*2
 
        
             
        
        
        
The answer is 678.09 plus 804