The area of the U. S. that stretches east from the Rocky Mountains to the Mississippi River is the:

Great Plains

Explanation:

The Great Plains are found between the Mississippi River and the Rocky Mountains. It is an expanse of basically flat grasslands found in ten U.S states.

for (a) a tragedy was considered a main greek drama and it influenced alot of others. for (b) the actors in greek theater were named as aeschylus, sophocles, and euripides and sometimes playwrites. for (e) in a semi-circular theater called the "orchestra.". we'll the question was explain where the namer actors originated.

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