22. Jack and Jill work at the same store. The total weekly salary of each employee can be represented by the functions shown, where S represents weekly salary, in dollars, and x represents the number of items sold. JACK: S = 100 + 5x Assuming that they sell the same number of items in a week, what is the minimum number of items they have to sell so that Jill's weekly salary is at least $100 more than Jack's? JILL: S = 80 + 6x 2* + 5 23. You are given the following two functions: f(x) = 2x-3 g(x) =-2(= + 18 Your teacher claims that the zero of the function g (f (x)) is greater than the zero of g(x). Prove or disprove your teacher's claim. Show all your work