What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?

Use set builder notation to represent the following set: { -3, -2, -1, 0}

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.

The sum of these consecutive integers is equal to 9 less than 4 times the least of the integer. find the three integers