Which of the following North American cities (metropolitan areas is largest in terms of population? a) Tucson, AZ
b) Las Vegas, NV
c) San Francisco, CA
O e) Los Angeles, CA

:calculate the sum of the interior angles of a 13-sided polygon.

What empire controlled most of the middle east except for a few years between 1516 and 1917, where was the capital of this empire located and what was the geographic extent of this empire?

Match the region in column 1 to the river in column 2