Red brass is an alloy made by combining copper with zinc in a ratio of 16 and 3. How much zinc should be combined with 40 kg of copper to make red brass?

Answerbecause of improved transportation, communication, and other advantages;

It is useful for historians to write narratives so that history can be passed on from their point of view.  think about a story being told in third person, then think about it again being told in first person, by someone who actually experienced the event.

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