Mayfield has a higher elevation than Salem. mayfield has an elevation 18 feet Above sea level, and Salem has an elevation of 20 feet below sea level. Which comparison represents Mayfield’s and Salem’s Elevations?

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 x=-3 is the only x-intercept of the graph of a quadratic equation, which statement best discribes the discriminant of the equation?

The ratio of men to women working for a company is 4 to 5 . if there are 90 women working for the company, what is the total number of employees?