Answer:
18.75 or 18 3/4
Step-by-step explanation:
 
        
                    
             
        
        
        
Step-by-step explanation:
6x2 - x + 3 - (-5x2 + 10x - 1)
6x2 - x + 3 + 5x2 - 10x + 1
Solving like terms 
11x2 - 11x + 4
 
        
             
        
        
        
Answer:
790
Step-by-step explanation:
You put 5 instead of x and you calculat
6*5^3 +8*5= 750+40=790
 
        
                    
             
        
        
        
Answer:
51 pounds, 48 pounds, 44 pounds and 40 pounds in that chronological order.
 
        
             
        
        
        
Answer:
It's the graph that its showed in the image