Marcie fills a graduated cylinder with 15.OmL of water. She finds the mass of a marble to be 2.21g, then drops the marble into the graduated cylinder. If the meniscus on the cylinder is now at 16.3mL, what is the density of the marble?

Which expression is equal to (21)(7)(3x) using the associative property? (21 · 7 · 3)x (7)(21)(3x) 32(7 + 3x) (3x)(7)(21)

Varies inversely with x. if y=8.5 when x=-1 find x when y=-1

Aflagpole broke in a storm. it was originally 8 1 81 feet tall. 2 8 28 feet are still sticking straight out of the ground, where it snapped, but the remaining piece has hinged over and touches the ground some distance away. how far away is the end of the pole from the base of the pole along the ground?