2. A regular pyramid with a square base is shown in the diagram below. A side, s, of the base of the pyramid is 12 meters, and the height, h, is 42
meters. What is the volume of the pyramid in cubic meters?

Aliter of water contains about 3.35 x 10^25 molecules. a certain river discharges about 2.9x 10^8 l of water every second. about how many molecules does the river discharge every minute? write your answer in scientific notation