Use a line plot. Arnold is an Architect and draws many lines on his blueprints. He just drew a line that was 1/2 an inch and then drew another line next to it that was 1/4 of an inch. How long is this line Arnold has drawn?

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?