Consider a rectangular bathtub whose base is 12 ft^2. At what rate is water pouring into the tub if the water level rises at a rate of 0.9 ft/min?

Question

Please show steps. (I want to know how)

Answer 1

area of tub x depth of water
Therefore a water level rise of 0.9 ft /min
Then, 12 x 0.9 = 10.8 cubic ft/min