At the start of a winter storm, the temperature measured -16°F. The temperature dropped
-5°F per hour for 4 hours to its lowest measurement during the storm. During the next 4
hours after the storm, the temperature rose to a measure of -24°F. How many degrees per
hour did the temperature increase after the storm?
A 12°F per hour
B 3°F per hour
C 8°F per hour
D -3°F per hour
