At 7 p. m the temperature was 15 F in the next 2 hours, the temperature fell 15F Select all true statement based on the the above information.

A. The temperature was 30 F at 9 pm

B. The temperature was 0 F at 9 pm

C. The change in temperature from 7 PM to 9 PM is represented by -15

D. The change in temperature from 7 PM to 9 PM is represented by 15.

E. The expression 15+( -15) represents the temperature change

F. The expression 15+15 represents the temperature change