Afarmer has two water tanks that drain at a rate of 2.5 gallons minute. he is considering replacing the existing tanks with new ones, either model s or model t. information about the new tanks is shown below. each tank holds 100 gallons of water and drains at a constant rate. how do the drainage rates of model s and model t compare with the existing tanks?

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?