Hopefully you guys can see this. This is the 2nd part to my 1st question. The picture with the colored shapes is the 1st part which was already answered gratefully. You can use that picture to help you answer this. I’ll be giving out a lot points for this as well as Brainliest to whoever answers correctly.
Thank you in advance and take your time.

How do you find principle and simple interest

(05.03 mc) part a: explain why the x-coordinates of the points where the graphs of the equations y = 4x and y = 2x−2 intersect are the solutions of the equation 4x = 2x−2. (4 points) part b: make tables to find the solution to 4x = 2x−2. take the integer values of x between −3 and 3. (4 points) part c: how can you solve the equation 4x = 2x−2 graphically? (2 points)

What is fraction that is equivalent to 3/8