Suppose f(x)=2^x-3x and g(x)=1-2x. find each of the following functions. (f+g)(x) and (f-g)(x)

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

What does the sign of the slope tell you about a line?

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square