F(g(x)) = f(x-4) = (x-4)
g(f(x)) = g(x) = x-4
Answer: 
Step-by-step explanation:
By definition, when you multiply two factors the result is known as "Product".
In this case you have to solve the following multiplication:

The first factor is already written in Standard form, but the second one is not written in Standard form.
Then, you need to rewrite it in numbers:

Therefore, the product is:

Answer:
-0.4 should be in between 0 and -0.5, however be as close to -0.5 as possible while not being ON -0.5.
3 4/5 should be in between 3 and 4, so you can split 4/5 into 8/10 which are equal to each other. Then you can pretend to split the 3 and 4 gap into 10 equal pieces. After you split the gap, count 8 parts to the left of 3.
Step-by-step explanation:
I hope you understand what I mean.
The equation for the direct variation is y= kx (where k is contant of variation.)
This equation represent that if x will increase then y will also increase because it's k times x.
Where the equation for indirect variation is 
By this equation if x will increase then y will decrease and vice versa.
The given data is :
x: 2 4 8 12
y: 4 2 1 2/3
Notice as x is increasing then y is decreasing. Like x has increased from 2 to 4 then y is decresing from 4 to 2 and so on.
So, the given data represent an indirect variation.