Question is in the jpg. Ples help meh :(

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

Why did the ice arena get so hot after the big game (this is math related google it to find the paper

Iwill give brainliest. suppose tommy walks from his home at (0, 0) to the mall at (0, 5), and then walks to a movie theater at (6, 5). after leaving the theater tommy walks to the store at (6, 0) before returning home. if each grid square represents one block, how many blocks does he walk?