There are 24 3rd graders, 36 4th graders and 18 5th graders in an after school music club. the teachers will set-up teams with no more than 8 students. what is the least number of teams that the teachers will need to divide the students into that will include all students.

Peter applied to an accounting firm and a consulting firm. he knows that 30% of similarly qualified applicants receive job offers from the accounting firm, while only 20% of similarly qualified applicants receive job offers from the consulting firm. assume that receiving an offer from one firm is independent of receiving an offer from the other. what is the probability that both firms offer peter a job?