What is the distance between points ( 9,2) and (3,7)

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

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?

Do,h = (7, 9) (14, 18) the scale factor is