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Find number abc

If 7c4c7 - ac487 = a997b find number abc. Multiple solutions may exist.

Correct answers: 26

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

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I'm sorry, said the clerk in flower...

"I'm sorry," said the clerk in flower shop, "we don't have potted geraniums. Could you use African violets instead?"
Replied the customer sadly, "No, it was geraniums my wife told me to water while she was gone."

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Joseph G(ilbert) Hoffman

Born 19 Aug 1909; died 9 Dec 1974 at age 65.American physicist and biophysicist who brought atomic isotopes into the battle against cancer. During WW II, he developed a radio proximity fuse and later was a health-physics scientist with "Manhattan Project." Hoffman studied nine accident victims of radiation disease at Los Alamos in Aug 1945 and May 1946. This research revealed for the first time that atoms of living human tissue could be transformed into radioactive atoms. He recognized "a completely new approach to studying the metabolism of atoms in living tissue and a new way of probing the complicated system of gene cells that determine heredity," and such knowledge was indispensable to understanding the mysteries of cancer research in which he engaged for the rest of his life.«

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