Divide top and bottom by 2= 7/1
Multiply top and bottom by 3. 21/3
Multiply top and bottom by 4 = 28/4
The expression we need to solve is:

To solve this problem, we need to not that we can simplify the fraction 2/10 by dividing both number by 2:
The answer is -8°F. This is because it DROPPED 8 degrees, meaning it was 8°F MINUS 8°F which would equal 0°F. Hope that helps!
You are finding the square root of 121
*the answer is 11*
because if you times 11 by its self you get 121