The graphed line shown below is y = 5 x minus 10.
Which equation, when graphed with the given equation, will form a system that has no solution?

1. y = negative 5 x + 10
2. y = 5 (x + 2)
3. y = 5 (x minus 2)
4. y = negative 5 x minus 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.

Ten times the square of a non-zero number is eqaul to ninety times the number

8. kelly wants to buy a magazine that is $25. later the magazine was marked up an additional 20%. what is the new price?