In Buffalo, New York, the temperature was -14°F in the morning. If the the temperature dropped 7°F, what is the temperature now?

The temperature is now -21

The starting temperature is a negative (-14)

To drop is to go down so the ##7^oF## is also a negative.

-14 - 7 = -21.

-14 goes down another -7 also goes down. Both are negative so the answer is a bigger negative.