Kellen runs for at least 1 hour but for no more than 2 hours. He runs at at an average rate of 6.6 kilometers per hour. The equation that models the distance he runs for thours isd = 6.6t Find the theoretical and practical ranges of the equation. Select ALL correct answers. The theoretical range is all real numbers. The theoretical range is the set of all real numbers from 66 to 16 2. inclusive The practical range is the set of all real numbers from 6.6 to 1312. inclusive The practical range is the set of all real numbers​

If a • b*2 = 1.8 x 10*-7, and c•b/d = 7.2 x 10*-4, find the value of a•d*2/c*2

  best answer for the question.1.     divide  7/24  by  35/48  and reduce the quotient to the lowest fraction. 

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.