How is this related to probability and geometry

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

How is working backward similar to solving an equation?

Table which ratio is equivalent to 3: 7? 6: 7 3: 21 24: 56 15: 30