In the diagram, triangle ABC is a right triangle and a semicircle with diameter AB is shown. If AB = 20, AC = 16 and BC = 12, then what is the total shaded area of the diagram?

Sara bought a pair of pants that were on sale for 30 percent off of the original price. if the original price of the pants was $29, what was the sales price of the pants?

Find parametric equations for the line. (enter your answers as a comma-separated list of equations. let x, y, and z be functions of t.) the line in the direction of the vector 5 i + 5 j − 6k and through the point (−4, 4, −2).

Write an inequality and solve each problem. for exercises 11 and 12, interpret the solution.