Pls help I need the answer fast

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

Jane moves from a house with 71 square feet of closet space to an apartment with 45.44 square feet of closet space. what is the percentage decrease of jane’s closet space?

Which spreadsheet would be used to compute the first nine terms of the geometric sequence a^n=32•(1/2)n-1