What fraction is greater 2/9 or 1/2?

The circumference of a circle is 5 pi cm. what is the area of the circle?

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

How is the equation of this circle written in standard form? x2 + y2 - 6x + 14y = 142 a) (x - 3)2 + (y + 7)2 = 200 b) (x+ 3)2 + (y - 7)2 = 200 (x - 6)2 + (y + 14)2 = 142 d) (x+6)2 + (y- 14)2 = 142