HELP! (WILL MARK BRAINLIEST!)

Step-by-step explanation:

Step 1:  Identify the blanks

and

f · g =

      =

      =

      =

Since the g(x) is in the inside, that is what goes in first to produce the f(2x + 4).  Now we put in (2x + 4) into the x of the f(x) function.  

This produces:    

Now, we just combine like terms to get:  

(1,4) is on graph of f(x)

f(1) = 4

so 1/4 f(x)

1/4 f(1)

1/4. ×4

1

so point for function 1/4. f(x) is (1,1)

v = 1/3 a^2h

step-by-step explanation:

the volume is 1/3 a^2h.