Which expression can be used to convert 22 australian dollars to us? assume 1.2 australian dollars equal 1 us dollar

Answer this question! 30 points and brainliest!

What statement is true? 2x^2-9x+2=-1

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?