Gorbachev helped end the cold war by

O. Invading Afghanistan.?
O. Withdrawing Soviet troops from eastern Europe.?
O. Becoming a U. S. Citizen.?
O. Stopping reforms in the Soviet Union.?

Reformation, calvinism, the colonization of the americas and the changes in political power (from nobility to bourgeoisie) during the late 1500s and 1600s. how did these events contribute to the rise of the modern-nation state and capitalism?

The arizona department of transportation wishes to survey state residents to determine what proportion of the population would like to increase statewide highway speed to 75 from 65 mph. at least how many residents do they need to survey if they want to be at least 99% confident that the sample proportion is within 0.09 of the true proportion?

•editorial: countries that harm their own citizens cannot be true u. s. allies?