Answer:
an octagon has 3 more sides then a pentagon 
Step-by-step explanation:
A pentagon has 5 sides while a octagon has 8 sides and 8 -5=3
 
        
                    
             
        
        
        
With what? Maybe I can help
        
             
        
        
        
Answer:
-15
Step-by-step explanation:
 g(x) = 3x + 3
Let x = -6
 g(-6) = 3*-6 + 3
            = -18 +3
             = -15