Please answer this. I have a limited amount of time.

Hector and alex traded video games. alex gave hector one fourth of his video games in exchange for 6 video games. then he sold 3 video games and gave 2 video games to his brother. alex ended up with 16 video games. how many video games did alex have when he started?

How can you tell when x and y are not directly proportional?

Use circumcenter theorem to solve for the given values