Find the complement of the set given that U = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12} {x | x is in W and x < 8}

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?