In russia, boyars were
a. muscovite cossacks.
b. high-ranking nobles.
c. russians of mongol descent.
d. officers of the mongol khan.

Why did china build the great wall of china?

Astorage company rents square storage units by the area of the unit. which graph shows the relationship between the area (x) of a storage unit and the length of its side (y)?

Describe the government under, and powers given by, the articles of confederation.