Find the value of the expression when x = 2, y = - 4 and z = ½.

What is x3+3x2−16x−48 divided by x−1?

If there are 3.281 feet in 1 meter, how many inches are in one centimeter

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?