11. PARKING The rates at a short-term parking garage are $5.00 for 2 hours or less, $10.00 for 4 hours or less, $15.00 for 6 hours or
less, and $20.00 for 8 hours or less. Draw a graph that represents the charges. State the domain and range.

This question awards 100 ! i really don’t want to fail i will also mark you !

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.

20 solve 2(4 x + 3) < 5 x + 21. a) { x | x < 9} b) { x | x > -5} c) { x | x > -9} d) { x | x < 5}