A submarine is descending to examine the seafloor 210 feet below the surface. It takes the submarine 2 hours to make this descent.
210 feet
Where is the submarine compared to the surface after 1 hour?
feet in one hour
The submarine found a deeper trench to explore which is 315 feet below sea level. How long will it take the
submarine to travel this distance?
hours
Lo

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.