An arts academy requires there to be 6 teachers for every students and for every 96 students and for 4 tutors for every 40 students How many students does the academy have per teacher? Per tutor? How many tutors does the academy need if it has 90 students .

Find the zero function by factoring (try to show work) h(x)=-x^2-6x-9

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.

Anna is constructing a line segment that is congruent to another segment ab. for the construction, which tool should be used to mesure segment ab