The variable z is directly proportional to x, and inversely proportional to y. when x is 12 and y is 18, z has the value 2.

what is the value of z when x = 19, and y = 22

Avideo game enthusiast saved $750 to spend on a video game player and games. the player costs $400. the games costs $49 each. at most how many games can this enthusiast buy along the player