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Find number abc

If 73ca5 + ac317 = 1b3b6b find number abc. Multiple solutions may exist.

Correct answers: 5

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My door was ajar, so...

“My door was ajar, so I added jelly, now it's a door jam.”

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Joseph Augustine Cushman

Born 31 Jan 1881; died 16 Apr 1949 at age 68.U.S. paleontologist and geologist known for his work on paleoecology as shown by Foraminifera (marine protozoans). He was director of Boston Natural History Museum between 1913-23 and director of Cushman Laboratory for Foraminiferal Research in Sharon, Massachusetts in 1923. He was the most well-known foraminiferologist of his time

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