What is the domain of the function {(18)a. {1,2,3,4,6,8}b{1,2,3,4}c.{2,4,6,8}d . {6,8}the other question i posted have the answer choices. hurry answer this one and the next one quckly.

2-digit numbers less than 91 which are 1 less than a multiple of 10

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.

Which equation can be used to measure the density of water in a spherical water tank? let w represent the number of water particles within the region.