5.62 in expanded form

Which is f(5) for the function –2x2 + 2x - 3?

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?

Which diagram shows lines that must be parallel lines cut by transversal?