What is 446,221 rounded to the nearest ten what is the answer

In which figure is de bc ? a. figure 1 b. figure 2 c. figure 3 d. figure 4

The general form of the quetion of a circle is ax^2+by^2+cx+dy+e=0 where a=b=0 if the circle has a radius of three units and the center lies on the y axis which set of values of a, b, c, d, and e might correspond to the circle

Cd is the perpendicular bisector of both xy and st, and cy=20. find xy.