A saline solution was placed under a heat lamp in an experiment. At 10:00 a. M., it had a 21% salt concentration. At 3:00 p. M., the salt concentration increased to 46% due to evaporation. By what percent did the salt concentration increase between 10:00 a. M. And 3:00 p. M.?

Mama mia restaurant used 1 2 2 1 ? of their mozzarella cheese making pizza and the remaining 6 4 64 ounces making pasta. how many pounds of mozzarella cheese did mama mia start with?

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

Which equation is y = -6x2 + 3x + 2 rewritten in vertex form?