203,245,237,233,90,100,100,277,265, 264,265,285,288,291, 291,290,300,224,200,257,290,279,266 ,288 What is the mean?

Technicians have installed a center pivot, circular irrigator for a farm that covers 25 acres. a.) how long is the irrigation boom (in feet) from the center pivot to its farthest extent? b.) if the irrigation boom makes 4 full revolutions in a day, how many miles does the end of the boom travel in 5 days?