How do i simplify this radical expression? i'm supposed to divide by rationalizing the denominator.

You're locked out of your house. the only open window is on the second floor, 25 feet above the ground. there are bushes along the edge of the house, so you will need to place the ladder 10 feet from the house. what length ladder do you need to reach the window?

Factor and solve to find roots x squared -x - 90 =0

Aright cylinder has a diameter of 8 m and a height of 6m. what is the volume of the cylinder