Select all the correct answers. which of the following functions are odd? a function composed of the sum of two odd functions

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?

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out

Which of the following is not a subset of {1,2,3}?