the measures of two angles of a parallelogram are 120 and 40 find the other angles guys please answer urgent

Sophia wrote an equation to represent the revenue of a movie theater for one day. she let x represent the number of child tickets sold and y represents the nunver of adult tickets sold. if a child ticket cost $4, an adult ticket cost $6, and the total revenue for the daybwas $420, which equation could sophia use to represent the number of chikd and adult tickets that were sold?

Solve for x where 0 equation: cot^2x+2cotx+1=0

Would greatly appreciate these 3 answers