The cargo-carrying part of billy's truck has a length of 8.3 meters a width of 3 meters and a height of 4.2 meters. what is the maximum volume of sand
that billy's truck can carry?

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?