Third one is true and x is 22,000
hope this helps
The inverse of the function
is 
Given the function 
We are to find its inverse
Step 1: Ley y = f(x)

Step 2: Replace y with x

Step 3: Make y the subject of the formula

Step 4: Take the square root of both sides

This shows that the inverse of the function
is 
Learn more here: brainly.com/question/8691744
Answer:
See below ~
Step-by-step explanation:
<u>Finding x</u>
- 2x - 28 = x/2
- 3/2x = 28
- 3x = 56
- x = 56/3 = 18.66666667
- The exact side length of the small square is <u>18.66666667 cm</u> and the exact side length of the big square is <u>37.3333334 cm</u>.
- The approximate side length of the small square is <u>18.7 cm</u> and the approximate side length of the big square is <u>37.3 cm</u>.
Commision would be $490
3500 times .14 is 490