which equation shows the quadratic formula used correctly to solve 7^2 = 9 + x for x?

The radius of a sphere is 3 inches. which represents the volume of the sphere?

3women sell hats at a craft fair weekly. the money they make at the fair is split into categories. 9% goes to pay taxes. $55 goes to pay rent for the space they sell in. the rest is split between the women. if the group make $706 at the fair, how much does each women get paid once the money is divided

X^2/100+y^2/25=1 the length of the major axis is: a)5 b)10 c)20