I know this is the right answer can you guys just explain it in the simplest way that I would understand, I'm on Thanksgiving break so my teacher isn't available at the time. I will give the brainliest to you if you help me understand it, please.

Answer: The answer is the first one.
Step-by-step explanation:
If x oranges were sold on Thursday, what is two times that? Well, 2*x is the same thing as 2x. When a variable and a number a put together, that means it is being multiplied. So, on Thursday x oranges were sold, and on Friday twice as much as that were sold. So, at the bottom, in the red part wold be x and 2x. The blue bar is the total number of oranges sold, which is 108.