Sam sold half of his comic books and then bought 6 more he now has 16 him many did he began with?

What is the sum of these mixed numbers 2 1/8 + 4 3/8

27 is what percent of 108? 27 is % of 108

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?