If you read this just answer it, ok is that so the formula below gives the area of a semi-circle, a, with a radius of r. solve the formula for the radius.

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

Which number produces a rationale number when multiplied by 1/5

What is 140% of 25? because i need