True or false the expression 5x - 3(2x-4) is equivalent to the expression 12-x

Given tan∅=4/3 and π< ∅< (3π)/2; find cos2∅ a. -24/25 b. 24/25 c. -24/7 d. -7/25

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?

Anna is constructing a line segment that is congruent to another segment ab. for the construction, which tool should be used to mesure segment ab