What did Mary Beth and John Tinker do at school that was found to be a protected form of expression by the Supreme Court?

In witch of these areas were the early bantu successful in part to there iron working skills ? check all that apply -agriculture -gathering -navigation -trade -warfare

How has u. s. participation in international economic development efforts affected other countries? o a. it has made some countries decide they no longer want close ties with the united states. b. it has ended diplomatic ties with countries that refuse to participate. c. it has raised money to poor nations grow their economies. d. it has caused the united states to intervene militarily to stop human rights abuses.

This is the belief that a nation must develop and maintain a strong military force in order to pursue and defend its national interests.