Solve the equation. 78 = -2(m + 3) + m question 1 options: –42 –72 –84 –28

Aladder that is 30 ft long needs to reach 27 ft up a building. what should the angle of the vertical be?

Solve |2x - 5| = 4 if anyone could , that would be great

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?