Zach has 3/4 hour to play vid games. it takes him 1/12 hour to set up the system. each round of his favorite game takes 1/6 hour. how many rounds can he play?

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?