Question

How would I do (c)? Algebra 2 help please.

Answer 1

To do (c), you just have to multiply 2x+9 and x-9/2 together. 

Answer 2

Well it is just asking for the answer without giving you the x value. So you start with the g(x)=(x-9)/2. Then you just out f(x) where the other x is. So g(f(x))=((2x+9)-9)/2. If you have any questions just ask!!