Answer:
<u>2y - 5 (read below)</u>
Step-by-step explanation:
-8y + 10y = 2y
2 + (-7) = -5
Your expression could/would be:
2y - 5.
Hope this helps!
It should be b im not sure
The temperature would be about 54.
Answer:
48390,"37,520","65,810",2170 or 2180 (both will work)