In my opinion spelling is a subject. I believe it is a subject because it is something you study in elementary and you will need to know it for the rest of your life.
Epic hero
The central figure in a long narrative who possess larger -than-life qualities such as bravery, loyalty, and heroism.
B is the best answer because it will establishes how you feel and the relationship with your readers
3x + 7 = x - 15
First, make sure to subtract

from both sides.
Second, simplify 3x - x to get 2x, and then keep the 7.
Third, subtract

from both sides.
Fourth, simplify -15 - 7 to get -22.
Fifth, take the 2 and divide both sides by it, keeping the

by itself.
Sixth, since 11 goes into 2 to get 22, simplify the fraction to 11.

Answer:
x = -11