Iwill give brainliest to whoever is correct

At the newest animated movie, for every 9 children, there are 4 adults. there are a total of 39 children and adults at the movie.

On saturday morning, calls arrive at ticketmaster at a rate of 108 calls per hour. what is the probability of fewer than three calls in a randomly chosen minute?

Ann and betty together have $60 ann has $9 more than twice betty’s amount how much money dose each have