TRANSLATIONS ON THE COORDINATE PLANE

Points a, b, and c form a triangle. complete the statements to prove that the sum of the interior angles of triangle abc is 180

Write an algebraic expression to match each statement a. four less than 8 times a number b. twice the difference of a number and six c. nine from a number squared

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?