2x ^ 2 - 6x + 3??
Please help

Solve for x: 5/3 x = 20/21 it's fraction. remember to simplify your fraction

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?

Writing proportions. no solving. write all of them ! extraaa points.