Answer:
(fog)(-3) = 125
Step-by-step explanation:
So, we need to first evaluate g(-3) and then plug the value of g(-3) into f(x) to find (fog)(-3). So, let's do that:


Thus, (fog)(-3) = 125.
Given:
The expression is

To find:
The simplified form of the given expression.
Solution:
We have,

It can be written as

![[\because a^2-b^2=(a-b)(a+b)]](https://tex.z-dn.net/?f=%5B%5Cbecause%20a%5E2-b%5E2%3D%28a-b%29%28a%2Bb%29%5D)
Taking LCM, we get




Cancel out the common factors.

Therefore, the simplified form of the given expression is
.
Hmmm can we see a clearer picture plz
First you need to find how far he can run in one minute. To do that divide 18.4 by 5. I got 3.68.
Then, multiply that by 23 to see how far he can run in 23 minutes. I got 84.64