Please help with this problem.

For the given functions f and g, complete parts (a)-(h). For parts (a)-(d), also find the domain. f(x) = 2x + 7; g(x) = 9x - 4 (a) Find (f + g)(x). (f + g)(x) = (Simplify your answer.) What is the domain of f + g? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The domain is {x| (Use integers or fractions for any numbers in the expression. Use a comma to separate answers as needed.) O B. The domain is {x x is any real number}. (b) Find (f - g)(x). (f -9)(x) = (Simplify your answer.) What is the domain of f- g? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The domain is {x|} (Use integers or fractions for any numbers in the expression. Use a comma to separate answers as needed.) O B. The domain is {x x is any real number).(c) Find (f . g)(x). (f . 9)(x) = (Simplify your answer.) What is the domain of f . g? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The domain is x/} (Use integers or fractions for any numbers in the expression. Use a comma to separate answers as needed.) O B. The domain is {x| x is any real number}. (d) Find ( (xx) - (x) = [(simplify your answer.) What is the domain of -? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The domain is {x| }. (Use integers or fractions for any numbers in the expression. Use a comma to separate answers as needed.)(e) Find (f + g)(3). (f + 9)(3) = (Type an integer or a simplified fraction.) (f) Find (f - 9)(4). (f -9)(4) = (Type an integer or a simplified fraction.) (g) Find (f . g)(2). (f . g)(2) = (Type an integer or a simplified fraction.) (h) Find ( ) (1). " (1)=(Type an integer or a simplified fraction.)