Factor completely: 3x - 75

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?

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

Which shows the graph of the solution set of 3y – 2x > –18?