The area of D is given by:

The average value of f over D is given by:
No HAHAHAHAHAahhahahsiaijxjs
The composite function as shown is 
<h3>Composite functions</h3>
Given the following fnctions

The composite function g(f(x)) is expressed as:

Hence the composite function as shown is 
Learn more on composite function here: brainly.com/question/10687170
Answer:
(x, y ) → (x + 2, y - 4 )
Step-by-step explanation:
Compare the coordinates of 2 corresponding points in the original and the image, that is
B(- 5, 4 ) → B'(- 3, 0 )
To translate from B → B'
We require a shift of 2 units right in the x direction and 4 units down in the y direction, that is
(x, y ) → (x + 2, y - 4 ) ← translation rule