Is it b or d can't decide

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 value of x is in the solution set of 4x - 12 s 16 + 8x? -10 -9 -8 -7

Find the greatest common factor of the followig monomials 46g^2h and 34g^6h^6