Awallet contains the same number of pennies, nickels, and dimes. the coins total $1.44. how many of each type of coin does the wallet contain?
blank coins of each

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?