The temperature at 7 AM was 1° the temperature drops 3° every hour for four hours what temperature at 11 AM

-11 degrees

Step-by-step explanation:

At 7 am the temperature is 1 degrees, then, an hour later, its drops by 3 degrees (1-3) which equals - 2 degrees, then it drops by 3 again, (-2-3), making it - 5, then it drops again, (-5-3), making it - 8 degrees, and then it drops one last time, (-8-3), making it - 11 degrees.

(P. s, I hope this is Celsius)