Acard is drawn from a standard 52-card deck. what is the probability that the card is a club, or that the card is a red-suited jack, queen, king, or ace?

Find the multiplicative inverse of 8-12i

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.

Jordan got 27 out of 90 correct on his test . what fraction of the marks did her get correct