(x,y) = {-2,-5}. I’m pretty sure this is correct. Hope it help!! ❤️
        
             
        
        
        
8.  You can graph this or use the summation function on the TI computer.  
        
                    
             
        
        
        
A straight line is 180° so....
9x+24 +6x - 24 = 180 
15x=180. ( because you have to combine like terms. 
X= 12
        
             
        
        
        
Answer:
<h3>
B. perimeter</h3>
Step-by-step explanation:
I think this would make the most sense.