24. A parking lot is 10 yards wide and 20 yards long. If the school increases the length and width by the same amounts to handle an increasing number
of cars, then what polynomial represents the area of the new parking lot?
a. 30x b. 60x c. x2 +30x + 200 d. x2 +60x + 500

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)?