Find the value of each expression: 9p3

Find the equation using the point (4,8)

Is the square root of 4 plus the square root of 16 rational?

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?