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Find number abc

If aac0b - a0c71 = 19c7 find number abc. Multiple solutions may exist.

Correct answers: 30

The first user who solved this task is Nasrin 24 T.

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Offshore oil rig

In 1955, the first seagoing oil drill rig (for drilling in over 100 feet of water) was placed in service by the U.S. company C.G. Glasscock Drilling Co. The rig, built by Bethlehem Steel at their Beaumont Yard, was able to drive piles with a force of 827 tons, and pull a pile with the force of 942 tons.[Another oil rig of 1955, south of New Orleans in the Gulf of Mexico]

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