What's 3.555 rounded to the nearest tenth

Use the normal approximation to the binomial distribution to answer this question. fifteen percent of all students at a large university are absent on mondays. if a random sample of 12 names is called on a monday, what is the probability that four students are absent?

How many $20 bills do you need to have to make $280

Identify this conic section. x2 - y2 = 16 o line circle ellipse parabola hyperbola