TwT please help, and how do you gave brainlist (whatever you call it I forgot the word XD)

Answer:
-2 degrees C
Step-by-step explanation:
So first let's see how many hours passed by:
3 p.m. to 10 p.m is 7 hours
Let's see how much the temperature changed:
-20 - ( -6 )
-20 + 6
-14
Now to find how much the temp changed per hour, divide the amount the temp changed by the amount of hours:
-14 / 7 = -2
The temp dropped 2 degrees C each hour.
Answer:
-2
Step-by-step explanation:
You have to find the difference between-6 and -20 which will equal -14.
You would then have to divide -14 by 7, as there is a 7 hour difference between 3pm and 10pm.
-14 ÷ 7 = -2.
Hope that helps :)