Find the difference of 6.751 and 2.5.

Answer this question only if you know the 30 points and

How far could you drive on 50 gallons of gas

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?