First we can find the volume of the smaller rectangle with l•w•h. So we'd multiply 12•9•6. That equals 648. Now, the bigger rectangle is the same formula with multiplying length, width, and height. So, 6•27•12, that is equal to 1,994. We add both volumes from each rectangle and that is the final product of the composite figure 1994+648. V=2,592
