The Undesirable Air Lines (UAL???) is notorious for its cost-cutting substandard customer service.Consequently, only 85% of the ticket holders will show up for a flight.The Air Lines workhorse, the Boring 878, has 234 seats.UAL, of course, will make extra money by overbooking.However, they have to worry about the FAA fines, and they have to keep a safety margin, say, that there is at least 95% probability that they can accommodate all those who show up for the Boring 878 flight.How many seats can they actually sell in this case?