18.84
Since the formula of circumference is C = 2 pi r or C = pi times diameter, you can conclude that the circumference is 18.84.
Assuming that pi is 3.14 in this case rather than the full pi or just in terms of pi.
Hope this helps!
Well say you have 10% and you want to change it to a decimal. 10% is the same as 10/100 or 10 divided by 100 which makes us move the decimal to the left twice.
I hope I helped :)
The answer is A. If you plug 12 into x and 6 into y, it would make sense.
12=2(6)
2×6=12
12=12
Hope this helped even though you have the answer :)