I think 12. I'm not sure though. The way I came up with that answer is the tree diagram. I used the numbers 1, 2, 3, 4, . Then I did the tree diagram method.
        
             
        
        
        
Answer:
3
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
Given that,
Height of the cylinder, h = 6 mm
Radius of the cylinder, r = 4 mm
We need to find the volume of the cylinder. The formula for the radius of the cylinder is given by :

Putting given values,

So, the volume of the cylinder is  .
.
 
        
             
        
        
        
515 - 87 = 428
428/245 = 1.746938 
To the nearest tenth = 1.7 lbs
        
             
        
        
        
So i think here you would FOIL. so -5x^2+10x-5x+10 and then combine like terms :)