PLEASE HELP WILL GIVE BRAINLIEST SIMPLIFY THE FOLLOWING EXPRESSION I NEED BOTH

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?

Which number completes the inequality? 2/3 < _ < 7/9

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square