A rectangle has these dimensions: width=8 units
length=20 units
Which dimension form a similar rectangle?

A. width=6 units
length=18 units
B. width=12 units
length=24 units
C. width=12 units
length=30 units
D. width=64 units
length=400 units

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.