Here is a gift i give 100 points hahahahha

Which of the following graphs could represent a cubic function?

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?

Which is an example of using the distributive property to multiply -5x^3(3x^2+3x-1) ?