What set of reflections would carry triangle ABC onto itself?

If 25% of y is 30, what is 60% of y?

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?

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup