Ed signed up for a weight-loss program. The table shows his weight in pounds in terms of the number of weeks since he began his weight-loss program. Assume that his weight loss is the same every week. Eric also signed up for a weight-loss program. The function y = 200 − 1.5x represents his weight in pounds in terms of the number of weeks since he began his weight-loss program. Of the two, loses fewer pounds per week. When the two began their respective weight-loss programs, was heavier by pounds.

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)?