! D:

The temperature at noon was 15 degrees Fahrenheit. At 8:00 PM, the temperature was -4 degrees Fahrenheit. What integer can be used to represent the difference in the two temperatures?

! D:

The temperature at noon was 15 degrees Fahrenheit. At 8:00 PM, the temperature was -4 degrees Fahrenheit. What integer can be used to represent the difference in the two temperatures?