Which division problem does the diagram below best illustrate? A). 30 divided 5 = 6
B). 35 divided 7 = 5
C). 21 divided 7 = 3
D). 40 divided 5 = 8

Plz hurry !!!

Don't know how to find x given these segment lengths

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.

Cole says the distance between points (-5,0) and (0,-5)is 5 units. is he correct? explain why or why not.