Darren filled a bathtub with water at an average rate of 1/4 gallon per second. He later drained the tub in 162 seconds. The tub took 90 seconds longer to drain than to fill up. At what average rate did the tub drain?

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?