How did the commercial revolution spark european involvement in the african slave trade?

In an essay of 400 words, summarize the responsibilities of the three branches of the united states government and the system of checks and balances. what is the purpose of the system of checks and balances?

What did kublai khan learn from the chinese advisers he consulted?

Germany italy and japan formed the tripartite pact in part because they: a. hoped to convince the united states to stay out of world war ii b. share the ruling philosophies based on communist economics c. resented the agreements they were forced to sign at the munich conference d. believed their territories were threatened by aggressive foreign states