Students were surveyed about the number of children living in their household. The table shows the results. Write each experimental probability as a fraction in simplest form.

P(one child)
P(2 or more children)
P(at least 3 children)

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?