Euclid of alexandria was a hellenistic mathematician. his most popular writing is called elements and deals with which of these subjects? a. calculus b. algebra c. geometry d. astronomy

This answer is C. geometry.

the national congress's powers over the states were specific and definite: it had the sole power to negotiate treaties, declare war, and make peace. all powers not granted to congress were reserved for state governments. congress had no power to levy taxes, for example.

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