If p+pq is 4 times p-pq, which of the following has exactly one value? (pq does not = 0) a)p b)q c)pq d)p+pq e)p-pq

Two sides of a triangle mesure 20cm and 30cm. what is the measure of the third side

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?

Which of the following answers is 7/9 simplified? 7/9 2/9 11/9 2/7