I'm somewhat confused at this question, but will give my best to answer it.
Spartan soldiers helped save retreating members of the Greek army:
against a force of three hundred Persian troops - this surely is false, as there never was a three hundred strong Persian force.
against the strength of the Athenian navy - this doesn't make much sense either, as the Athenian navy was Greek, so there's no reason for Spartan soldiers to defend greeks against the Athenian navy.
at the Battle of Marathon - the Spartans were not involved in this battle as they were celebrating a religious festival at the time.
The most likely answer is therefore at the Battle of Thermopylae, where a small Spartan contingent of soldiers stayed to defend the frontiers of their borders in order to enable the rest of the army that was with them at the time, to retreat.
mexico is where it was common
Explanation:
Hitler capitalized on economic woes, popular discontent and political infighting to take absolute power in Germany beginning in 1933. Germany's invasion of Poland in 1939 led to the outbreak of World War II, and by 1941 Nazi forces had occupied much of Europe.
tan A should be the corner try work out work out:

first and then add all the others (B=90)
Explanation:
A and C should be the same
He NAACP opposed racist views that terrorized and segregated people of color. They were an intellectual group that help to bring about fairer education (Brown vs. Board of Education, 1957) kinder housing and anti-lynching, They felt all humans should be treated with justice, kindness and equality and lobbied to foster positive change in America. (Thank goodness they brought awareness to so much cruelty and injustice. It still makes me cringe to think the U.S. was and still is so uninformed about human issues.)<span>
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