Which two points are on the graph of T(b) = –20 – 5b? Choose exactly two answers that are correct.
A. (0, –20)
B. (0, 20)
C. (4, 0)
D. (–4, 0)

Ineed with number 17 i don’t get it at alll

Use set buikder notation to represent the following set: {, -2, -1, 0}

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.