213,000 can be rewritten as 2.13*10^5. This tells us that it has has 3 significant digits.
Your correct answer is b. It has three significant figures.
Because of the unrestricted attacks German submarines were making on American ships
Enforce a stricter code of conduct more closely following the rules and guidelines of the supreme court
Integration of religion with Roman politics serving a pantheon that functioned more like family gods of the Roman state
