An air-conditioner manufacturer randomly samples 50 units and finds that 2 are defective. the company ships 1200 units each month. which is the best prediction for the number of defective units in the monthly shipment? 25 24 48 50

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?