-8 is the answer to your question
        
                    
             
        
        
        
6+7 is that good i hope so
        
             
        
        
        
<span>8 + 5n = -72
5n = -72 - 8
5n = - 80
n = -80/5
n = -16</span>
        
                    
             
        
        
        
13.3cm rounded to the nearest 10th
        
             
        
        
        
Answer:
B
Step-by-step explanation:
8x^2+x+3 follows the rules of being a polynomial due to the three terms being added to each other, and that they are in descending order.