4x + y = 5
3x + y = 8
y = -3x + 8
4x +(-3x + 8) = 5
4x -3x + 8 = 5
x + 8 = 5
x = -3
y = -3(-3) + 8
y = -9 + 8
y = -1
        
                    
             
        
        
        
Answer:
I think that it may be 33
Because, you see 15-9=6
so you do 20-9=11
Then you do 25-9=16 
add them all together to get 33 so i think that's the perimeter 
I am really not sure if this is correct...i'm kinda bad at stuff like this
 
        
             
        
        
        
Answer:
9x^2-49
Step-by-step explanation:
FOIL
 
        
             
        
        
        
Answer:
what are the choices
Step-by-step explanation: