33. Which of the following values in the set {21, 28, 50, 77} is not a solution to
83 - P > 9?
A. 28
B. 21
C. 50
D. 77

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?