How do I get to -11 to -5

If f(x) = 2x - 6 and g(x) = 3x + 9, find (f - g)(x). a. (f-g)(x) = x + 15 o o b. (f- g)(x) = -x - 15 o c. (f- g)(x) = 5x + 3 o d. (f- g)(x) = -x+3 submit

The interior angles formed by the side of a hexagon have measures of them up to 720° what is the measure of angle a

Which shows the first equation written in slope-intercept form? 1/2 (2y + 10) = 7x