The complete question is: Henry knows that the circumference of a circle is 
18π inches. What is the area of the circle?
Solution:Circumference (C) of the circle can be written as:

Using this value of radius, we can find the Area(A) of the circle.
 Therefore, area of the circle having a circumference of 18π inches will be 81π inches²
Therefore, area of the circle having a circumference of 18π inches will be 81π inches²
 
        
             
        
        
        
X=8 
Here my
Work message me if u have questions
 
        
        
        
The answer is 10x - 1380m + z
        
             
        
        
        
x-32.2= 18.5
Add 32.2 to both sides 
x-32.2+32.2 = 18.5 + 32.2
x = 50.7 
I hope that's help ! 
Check your answer 
replace x by its number 
50.7-32.2= 18.5
18.5 = 18.5 
so the answer is good . 
Please let me know if you have question(s) ! 
 
        
             
        
        
        
There are several methods of rounding, but in this case the 'best' one is probably to round up. Rounding down suggests that Kathy actually ran faster. 
<span>26.2 (mile) * 6.2 (minutes/mile) = 162.44 rounded up => 163 minutes.</span>