Abasketball court is in the shape of a rectangle. it has a length of (x − 7) meters and a width of (x + 3) meters. the expression below represents the area of the court in square meters.

(x − 7)(x + 3)

which of the following simplified expressions represents the area of the basketball court in square meters?

− 6x + 3

x2 − 21

x2 − 4x − 21

x2 − 7x + 3

There are two major tests of readiness for college: the act and the sat. act scores are reported on a scale from 1 to 36. the distribution of act scores in recent years has been roughly normal with mean µ = 20.9 and standard deviation s = 4.8. sat scores are reported on a scale from 400 to 1600. sat scores have been roughly normal with mean µ = 1026 and standard deviation s = 209. reports on a student's act or sat usually give the percentile as well as the actual score. the percentile is just the cumulative proportion stated as a percent: the percent of all scores that were lower than this one. tanya scores 1260 on the sat. what is her percentile (± 1)?