15. Let f(x) 3- 2x and g(x)- , find (fog)(x) 16. State the intervals on which f(x)--X-21-3 is increasing 17. Let f(x) 4x+300, find 18. State the solution set to the inequality (x+2)(x-2)
Show transcribed image text15. Let f(x) 3- 2x and g(x)- , find (fog)(x) 16. State the intervals on which f(x)--X-21-3 is increasing 17. Let f(x) 4x+300, find 18. State the solution set to the inequality (x+2)(x-2)