Answer:
39
Step-by-step explanation:
x-3y=9
x-y=29
subtract
-2y=-20
y=10
x-10=29
x=39
 
        
                    
             
        
        
        
Adam made an error of 400 meters
Explanation:
Since, submarine traveling 200 meters below the surface of the ocean
and when the depth increases by 45 meters then submarine new location is
 meters below from the surface of ocean.
 meters below from the surface of ocean.
But Adam says that new location is at -155 meters.
So, error is,    meters
 meters 
Learn more:
https://brainly.in/question/13000874
 
        
             
        
        
        
Answer:
120quarts because you have to add 40+40+40
 
        
             
        
        
        
3 is common and therefore the factorization of the expression will be
3(w-2)