Answer:
Approximantly 20
Step-by-step explanation:
Circumference = pi times diameter
63/pi = diameter 
Answer: 20.0535228
 
        
             
        
        
        
You can add the numbers together so:
 12.6
   3.1
<u>+ 5.4
</u> 21.1 
<u>
</u>Since the sum of the numbers is 21.1, it is greater than 20<u>
</u>
        
             
        
        
        
2-3x=-x-8
-3x=-x-10
-2x=-10
X=5
        
                    
             
        
        
        
In equation, (-d + e)( 4e + d) will be (-4ed - d^2 + 4e^2 +ed ) to simplify we combine the terms with the same variables such as d^2, e^2 and ed. The equation becomes, 4e^2 - 3ed - d^2 . The product has 3 terms with a degree of 2. The statements that are true are B and E.