Before making invitations, katrina counted the supplies she bought for her party. she counted 36 water balloons and 81 beads to make bracelets. she then needed to decide how many invitations to make.
what is the largest number of friends she can invite so each person gets the same amount of water balloons and each friend gets the same number of beads?

a.6
b.7
c.9
d.10

explain you.

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?