Hey there buddy the answer would be 1,197
        
                    
             
        
        
        
Step-by-step explanation:
it will be answer B
2x^3+6x^2-4x-12
 
        
                    
             
        
        
        
A heptagon has 7 sides.
Sum of all interior angles = (7 - 2) x 180 = 900°
900 - 776 = 124°
Answer: The final angle must be 124°
        
                    
             
        
        
        
Beforehand let me apologize for my sloppy handwriting. I'm a lefty, so please deal with me. . Anyway, the equation you listed didn't really have a x, because a linear equation is y= mx+b, and anything with x is the slope. But I did see y and a number on one side, so I'm like maybe I can get these two alone. So here's what I did: 
2y + 4=0
 -4 -4 I subtracted 4 on both sides. Why because you would want "y" alone. 
Next, 
2y= -4 
Now to get "y" alone you want to divide on both sides. 
2y= -4/ 2
y= -2
Now you're probably thinking "how do you graph it? There's no "x" in the equation." Well, you just graph it. Since the answer is y= -2, you go to the y axis, look for -2, and place a line to indicate that is the equation. And to make it clear, remember y is the y-intercept. 
I really do hope this helps you, if not message me. I'll be happy to help, and again I'm sorry for my handwriting! 
 
        
        
        
Answer:
1 1/6 ton
Step-by-step explanation: