Answer: 21 years
Explanation:
I am pretty sure that, that is the best answer.
Answer:
rational
Explanation:

6 and -6 are both rational numbers because they can both be expressed as a fraction.
Declaration of Independence i think
B is more likely to be because back in 1965 there was a lot of racism so it’s more likely to be B
Sup federalist believed that we needed a strong government or else the nation would destroy it self.While anti federalist believed that states should retain most of there power