Please please help with this question! I am taking a test, but it is to see what I know, so they are all questions about things I haven't learned before, to see If I know them. I am stuck on all of them! I'll probably be asking more, so if you know this, please keep an eye on my page for new questions!

Which expression is equivalent to -5(3x - 6/7)

Complete the conditional statement. if a + 2 < b + 3, then a < b b < a a – b < 1 a < b + 1

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?