Question

I need help PLZ

Use the functions f(x) = 4x − 5 and g(x) = 3x + 9 to complete the function operations listed below.

Part A: Find (f + g)(x). Show your work.

Part B: Find (f ⋅ g)(x). Show your work.

Part C: Find f[g(x)]. Show your work.

Answer 1

This is all I understand
Part A. 4x+3x=7x 
-5+9=4 Part a is 7x+4

Answer 2

First you have 4x-5+3x+9 so you add 4x and 3x to get 7x+9-5 then you add 9 and -5 to end with 7x+4