Subtract what is to the right of the equal sign form both side of the equation but any way the answer is 0
The answer is 20 because you plug in x=2 into f(x)

Answer:
m=rise over run
so it would be 
Step-by-step explanation:
Square part of perimeter = 40.
Half circle = 25.135.
Together 65.135 is perimeter.
Area of square: 192
Are of half circle: 100.53.
Together 292.53
Rounded =292.48 I guess, its the most logical option since I don't see it and the only one that fits perimeter answer.
So its the 3rd question I believe, you may want to double check.
Hit the heart if it was helpful.