9. Births in a recent year, NYU-Langone Medical Center had 4221 births. Find the mean num- ber of births per day, then use that result to find the probability that in a day, there are 15 births.
Does it appear likely that on any given day, there will be exactly 15 births?

15. jiovanni is looking in to two different companies that offer study guides for math exams.test prep 101 charges a $5 flat fee and an additional $0.25 per problem.math charges a $2 flat fee and an additional $0.50 per problem.how many prablems would make the costs of the two companies be equal? varibles: equations/eniqualities{ {