The answer to that problem would be: <span>0.1875</span>
They might have spanish last names because they originated from old ancestors that could've been hispanics
They crossed the border to help fight.
An example of a challenge to political change would be special interest groups in Congress, while for economic change it would be tax codes, and for social changes it would be a lack of unity in protest.
Answer:
Emancipation Proclamation
Explanation: