Answer:
453 have a nice night
Step-by-step explanation:
-4.2 degrees. What you would do is from 8-12 (midnight) is 4 hours. So it dropped -16.8 degrees in those 4 hours so -16.8 / 4 is -4.2 degrees. So it dropped -4.2 degrees every hour but it was also -4.2 degrees at 9:00 p.m.
4 is 20% of 20. Hope this helps!
$10.63
the work is shown below
