Simplify.
Rewrite the expression in the form z^n
z^7/z^-14
=
21

Aheated piece of metal cools according to the function c(x) = (.5)x ? 7, where x is measured in hours. a device is added that aids in cooling according to the function h(x) = ? x ? 2. what will be the temperature of the metal after two hours?

When the ball has traveled a distance of

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?