I think it’s Original Law
1. Increase range of motion
2.Increase density
3.Vary tempo
4.decrease mechanical advantage
Answer: The World Trade Center Towers fell on September
11.2001
Explanation: Please don't simply copy and paste your questions; sometimes the formatting goes all wacko, like it did here. Also, double-check that ALL the information pertaining to the question is included; I'm not entirely sure that this answer is correct, due to the fact that there is no "line" to even read. :)
I would have to say that the best way to revise sentence four is by changing "aren't" and "they're" to "are not" and "they are."
"Argue" works better than "fight."
Deleting the entire sentence would remove the transition into cost efficiency of the tablets.
And moving the sentence to the end would place the transition to cost efficiency in the wrong place.