In triangle ABC, angle ACB is a right angle, E is a point on line AC, and line ED is drawn perpendicular to hypotenuse AB.
If AB=9, BC=6, and DE=4, what is the length of line AE?

Explain how you can use the associative property to evaluate (7x50)x4.

Two cyclists 84 miles apart start riding toward each other at the same. one cycles 2 times as fast as the other. if they meet 4 hours later, what is the speed (in mi/h) of the faster cyclist?

What is the best estimate of the length of a football