Events A and B are overlapping. P(A) =
P(B) =
P(A and B) =

Find P(A or B).

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

At the olympic games, many events have several rounds of competition. one of these events is the men's 100-meter backstroke. the upper dot plot shows the times (in seconds) of the top 8 finishers in the final round of the 2012 olympics. the lower dot plot shows the times of the same 8 swimmers, but in the semifinal round. which pieces of information can be gathered from these dot plots? (remember that lower swim times are faster.) choose all answers that apply: a: the swimmers had faster times on average in the final round. b: the times in the final round vary noticeably more than the times in the semifinal round. c: none of the above.

Find the equation of the line with slope =8 and passing through (6,53) write your equation in the form y=mx+b