What is the correlation between the number of hours studying and the number of questions correct on the quiz? a. not enough information is given
b. negatively correlated
c. positively correlated

Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?