According to salary surveys conducted by the National Association of Colleges and Employers (NACE), mechanical engineering graduates with a master's degree earned an average starting salary of $66,158 in 2009 and $69,954 in 2010.
There was more fuel on-board for the auxiliary propulsion systems and for the various modules, but the above was the fuel used to get the payload into space and to the moon. That's a total of 3,787,350 liters of fuel, or just over 1 million gallons of liquid fuel with a fuse! Wow! Of interest: Europe is preparing plans to join the U.S. in building a manned spaceship that will take men and women to the moon.
If so, water mining might be possible, and it would solve a lot of problems. Water is necessary for drinking and irrigation, and it can also be converted to hydrogen and oxygen for use as rocket fuel. If water isn't available on the moon, it must be imported from Earth. One way to do that would be to ship liquid hydrogen from the earth to the moon, and then react it with oxygen from the moon's soil to create water. Since water molecules are 67 percent oxygen and 33 percent hydrogen by weight, this might be the cheapest way to get water to the moon.