Notice the corners; the corner on each triangle with one line is equivalent, and the same goes for the corner on each triangle with two lines, and the corner on each triangle with three lines. this is just a way to know which angles match up!
this means the answer would be:
D!
        
             
        
        
        
Answer:
Sorry
Step-by-step explanation:
 
        
             
        
        
        
Answer:
y=1
Step-by-step explanation:
8y-9=-3y+2
-2
8y-11=-3y
-8y
-11=-11y/-11
 
        
                    
             
        
        
        
Answer:
(3,1)
Step-by-step explanation:
Multiplying the second equation by 3, we get
-12x-6y=-42.
Now, adding this to the first equation, we get 
-13x=-39
Therefore, x=3
plugging in x=3 to the first equation, we get that 
-3+6y=3
adding 3 to both sides, 
6y=6
therefore, y=1
 
        
             
        
        
        
If u dig a 10 foot hole how deep is that whole? bout 20 feet