An aquarium has a special penguin exhibit. The table shows the cumulative number of visitors to the exhibit at various times one Saturday. No visitors are allowed to enter the exhibit after 4:40 p.m., and the same number of visitors can enter the exhibit over each 20 minute period. How many visitors can the aquarium expect came to the penguin exhibit that day?


An aquarium has a special penguin exhibit The table shows the cumulative number of visitors to the exhibit at various times one Saturday No visitors are allowed class=