The temperature has been going down at a constant rate. In 8 hours it went down 16 degrees. Which expression best shows the temperature change each hour?

-2 degrees/hour

Step-by-step explanation:

The temperature changes - 16 degrees (negative because it wents down) in 8 hours, so to know the chance per hour, we divide the number of degrees by the number of hours. If we call DT the change of temperature each hour, we have that:

DT = - 16 degrees / 8 hours = - 2 degrees/hour