It's called the GCF or the Greatest Common Factor....I hope I helped!
<u>Answer:</u>
−12 ÷ 4 expression best shows the temperature change each hour. Hence Option C is correct
<u>Solution:</u>
Given that, the temperature has been going down at a constant rate.
In 4 hours it went down by 12 degrees.
Now, we have to choose the correct option which best describes about the change in temperature for each hour.
Now, we know that, 12 degrees decreased in 4 hours.
Then, number of degrees decreased in one hour = 
Number of degrees changed in one hour = 
Because the temperature is decreasing we have to add a (-) symbol before the change in degrees.
So, now, <em>number of degrees changed in 1 hour </em>= 
Hence, the correct option is option c.
Acute angles are angles that measure below 90°, meaning below a right angle.
I believe it is yes. I think the right fraction is 84/1000. Let me know if this works and if not tell me
2. Honestly ur question doesn’t make sense so I just did 1/2 times 4