Shayla is balancing her checkbook. which subset of real numbers best describes her balance?

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?

What is the base of 1/9 to the power of 2

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?