What is m∠abc? justify your reasoning

Polynomial that can be factored as (3x-4)(3x+4)

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?

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76