Ali and Sophie are budding musicians who have been playing Thursday night shows at a local live music venue. The venue told them that over the course of the last four weeks, they’ve had 900 tickets sold for their shows. They are curious to see how many people are repeat fans, coming to more than one show. The venue’s recent customer survey says that 60% of fans have come once, 30% have come twice, 6% have come three times, and 4% have come four times. How many unique people have seen an Ali and Sophie show during this time period?
