Fernando built a robot to filter air and water efficiently. He expects the robot to filter more than 512 liters of air and water while using less than 9 Joules of energy. A represents the number of minutes the robot filters air, and W represents the number of minutes the robot filters water.

21A+14W > 21A+14W>51, A, plus, 14, W, is greater than, 512 represents the number of minutes the robot filters air and water to filter more than 512512512 liters of air and water.

0.36A+0.6W < 90.36A+0.6W<90, point, 36, A, plus, 0, point, 6, W, is less than, 9 represents the number of minutes the robot filters air and water while using less than 9 Joules of energy.