A rope 55 feet long is cut into two pieces. If one piece is 23 feet longer than the other, what is the length, in
feet, of the shorter piece?
A. 2
B. 16
C. 23
D. 32
E. 51

What is the 12th term of b(n)=-4-2(n-1)

Find the solution of this system of equation -7x+y=-20 9x-3y=36

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.