Lexi has 2 cans of tennis balls. she buys 2 more cans . how many tennis balls does did sashas buy

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)?

The owner of a coffee shop compared the amount of hot coffee per day, in fluid ounces, sold and the daily high temperatures, in degrees fahrenheit, per day. her data are shown in the scatter plot below

The ratio of men to women in a certain factory is 3 to 4. there are 228 men.