13)find the are for the rectangle below- can someone give me steps on how to do this?

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?

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1

Is a positive integer raised to a negative power always positive