You are considering changing insurance companies. your current company charges you $1,500 per year for homeowners insurance plus $300 quarterly (every 3 months) for car insurance. save-with-us insurance company will charge you $1,300 per year for homeowners insurance and $1,400 per year for car insurance.

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?