Chris’ Cafe is increasing its customer base by advertising. On the first day of the campaign, they had 3 customers. On the second, they had 11, and on the third, they had 19. Is the sequence that represents the number of customers arithmetic? If it is, write the recursive formula for the sequence.

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?