Find the interquartile range (IQR) of the data in the box plot below.
dollars
Cost of each lunch for the month (in dollars)

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

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.

Which of these tools or constructions is used to inscribe a hexagon inside a circle?