Three points are collinear. always, sometimes, never

What is the number 321,000,000 in scientific notation? also what is the number? ?

What is the similarity ratio of a cube with volume 729m^3 to a cube with volume 3375 m^3

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