The equation of the terminal side of an angle 0 in standard position is given by 2x + 3y = 0, for x > 0. PLEASE HELP

Solve 5 tan x = 5√(3) for 0° ≤ x ≤ 180°. a. 60° b. 150° c. 30° d. 120°

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

Louis wants to carpet the rectangular floor of his basement.the basement has an area of 864 square feet.the width of the basement is 2/3 it's length. what is the length of louis's basement