Solve my written homework, it's about functions and inverse functions. and finding domains of functions / inverse functions

Let f(x) - x +5 and g(x) =-. Use these functions to answer the next two questions. x 1. Evaluate and simplify (x ). (A) x+5 x (B) x2 + 5x (C) 1 x x2 + 5x (D) x+5 (E) None of these 2. Evaluate and simplify (f . g)(x). (A) -+5 x (B) (C) x+5 x (D) x? + 5x (E) x x+5 x+ 5 3. Determine the domain of (B + C)(x) if B(x) = x- 7 and C(x) = Vx + 6. (A) (-@., -6)U(-6, 7)U(7, 0% ) (B) [-6, 7)U (7, 0 ) (-6, 7) U (7, 00) (E) (-6, 00 ) 4. Determine the domain of (C. B)(x) if B(x) = x -7 and C(x) = Vx + 6. (A) (-6, 0. ) [-6, 0% ) [-6, 7)U (7, do ) D) [1, 60 GE ) (1, 0. ) 5. Suppose h(x) = rug . where /(x.) - (fog Xx). If f (x)- which one of the following is g(x )? (A) g(x)=x+9 (B) g(x)= x-9 (C) g(x) = 19 (D) g(x) =9 (E) g(x) = Vx+9