Hi, please help. A restaurant owner can buy ketchup bottles in boxes of 10 and mustard bottles in boxes of 6. The owner bought the fewest number of ketchup and mustard bottles so that there is exactly one ketchup bottle per mustard bottle with none left over.

How many boxes of ketchup bottles and how many boxes of mustard bottles did the restaurant owner buy?

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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.