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Find number abc

If 9b80a - 90ac7 = bbbb find number abc. Multiple solutions may exist.

Correct answers: 9

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I was wondering why the ball k...

I was wondering why the ball kept getting bigger and bigger, and then it hit me.

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Jarvik 2000 artificial heart

In 2000, a man in Israel become the first recipient of the Jarvik 2000, the first total artificial heart that can maintain blood flow in addition to generating a pulse.

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