Hat are the solution(s) to the quadratic equation 40 − x2 = 0

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

Formidable obstacles of climate, terrain, and distance hinder exploitation of natural resources in russia. true false

What is the term for a government where power is carefully divided between a central government and several regional or provincial governments? a.) unified or central government b.) federal government c.) confederate government d.) republican government