Information about the age of participants in a robotics competition is in the image The middle 50% of the data is between what two numbers?
16 and 33
13 and 31
11 and 33
11 and 16

Noel is hoping to make a profit (in $) on the school play and has determined the function describing the profit to be f(t) = 8t – 2654, where t is the number of tickets sold. what does the number 8 tell you?