.20 or 20. one of those i cant give you the answer because how are u going to learn <span />
Answer:

Step-by-step explanation:
We have the two functions:

And we wish to find:

First, let’s find f(2) first. So, we will substitute 2 for x for f(x):

Hence, we can now substitute 3 for f(2):

Now, we can find g(6). Substitute 6 for t for g(t):

Therefore:

As I understand from the given above, each box when empty weighs 5-2 kg or 3 kg. To determine the total weight of Michael's boxes when empty, we just have to multiply 3 kg by 5. This gives us an answer of 15 kg. Thus, the total mass of Michael's boxes is 15 kg.
Dividing fractions is the same as multiplying by its reciprocal so you can change the equation to this

And you can simplify by eliminating the fours and multiplying straight across

You can pull out - 7 from the top and 2 from the bottom so you have this

And then you can cancel out to (2-x) to get an answer of
P=12/3
Explanation: P is the variable and to find how many we can buy with 12 dollars we divide 12 by 3 which is the price.