Use the drawing tools to form the correct answer on the number line. Graph the solution set to this inequality.
-2(x + 6) > -40

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?

Pls! does anybody know a shortcut for answering these types of questions in the future?

Find the equation using the point (4,8)