PLZZ ANSWER THIS LAST QUESTION ASAP I HAVE 3 MINUTES!!

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?

What are the soultion(s) to the quadratic equation 40- x^2=0

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles