The first one is 43/72 which can’t be simplified
The second one is 17/18
You need x 20 to get to 10000, so do the same with 150 and get 3000, so it is 3000/10000
<h2>
Hello!</h2>
The answer is:
The first option,

<h2>
Why?</h2>
To find the inverse of a function, we need to rewrite the variable "x" with "y" and the variable "y" with "x", and then, isolate "y".
We are given the function:

Write "f(x)" is equal to write "y", so:

Now, finding the inverse, we have:

Hence, we have that the answer is the first option,

Have a nice day!