Answer:
Federalism is the system of government in which power is divided between a central government and regional governments
Explanation:
Answer:
slaves aren't paid for thier work, and masters receive the profit so C.
Answer:
The answer is a double-blind study.
Explanation:
A double-blind study is a research method in which neither the participants or the researchers are aware about which group is receiving the treatment. This is done in order to avoid biases such as the placebo effect, as well as preventing accidental cues given by the researchers.
The greatest advantage of this approach is its high validity.
A strong dollar makes imports less expensive and foreign travel cheaper. A weak dollar makes imports more expensive and foreign travel more expensive.