Find the coordinates of the midpoint of a segment having the given end pointsc. c(9,5),d(17,4) i can't figure it out.

Will gve pints stars and brainliest

With alll of except for the 2 that i did already

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?