The first two photos are part A and the last photo is part B!!!

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

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?