PLEASE HELP!?
Sarah and her family are moving. The moving truck has a ramp that stretches from the top of the truck's bumper to the ground. The vertical distance from the top of the truck's bumper to the ground, x, is 35 inches. The horizontal distance, along the ground, from the bumper to the base of the ramp, y, is 84 inches. What is the length of the ramp, z?