Use long division to solve (x^3-2x^2-8) / (x+2)

Aladder that is 20ft long is leaning against the side of a building. if the angle formed between the ladder and the ground is 75 degrees how far is the bottom of the from the base of the building?

240 seventh graders and two-thirds of the students participate in after-school activities how many students participate in after-school activities

With this problem-elena cycled to school. find the distance travelled by elena if her bicycle wheels rotated 840 times and the radius is 0.25 m.