The temperature is 8° F. As a cold front moves in, the temperature drops 6° F per hour. What is the temperature at the end of 3 hours?

The temperature at the end of 3 hours can be found by subtracting 6° F per hour for 3 hours from the initial temperature of 8° F:

Initial temperature: 8° F
Temperature drop per hour: 6° F
Number of hours: 3

Temperature at the end of 3 hours: 8° F - (6° F/hour * 3 hours) = 8° F - 18° F = -10° F