Anxiety Disorder Statistics. Anxiety Disorders affect 18.1 percent of adults in the United States (approximately 40 million adults between the ages of 18 to 54).
Perfect square. Perfect square is an element of algebraic structure which is equal to the square of another element. Square number, a perfect square integer.
Fuckin' Perfect (written as F**kin' Perfect on the album cover and in the iTunes Store) is a song by American recording artist Pink, taken from her first greatest hits album Greatest Hits... So Far!!! (2010). It was released on December 14, 2010 by Jive Records as the album's second single.