You throw darts at a dartboard. let event a=the first dart hits the center. let event b = the second dart hits the center. what does p(b|a) represent? does anyone get this?

Which of the functions graphed below has a removable discontinuity?

The value of cos 30° is the same as which of the following?

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?