Write a function that repersents this process:
a: take a number, x.
b: multiply it by4.
c: subtract 2 from the result
then find the inverse of this function. does the inverse represent the reverse of the process above ? explain why or why not.

The function:
Start with x and multiply it by 4
4x
then subtract 2
y=4x-2

To find the inverse, switch x and y and solve for y.
x=4y-2
Add 2 to both sides
x+2=4y
Divide by 4 on both sides
(1/4)x+1/2=y

I don't quite understand what it means by "Does the inverse function represent the reverse of the process" but hopefully the inverse can get you started!

Just tell koda to adjust the number of shapes himself.

The answers are 20,30,80,180,960,890,1230,4560. on the first row