Explain how Free Public Education keeps the idea of equality alive in America.

Everybody is able to enroll into public schools

Explanation:

As to private schools usually require tuition so any child, rich or poor is able to  attend a public school.

polling is a process and the outcome is not involved in the process itself.

the outcome, which is an unfavorable rating for a particular candidate is not affected by the mechanical process of polling.

it rather depends on the number of people voting in favor of the candidate.

this is an outcome of people's preferences.

b.

jim crow laws were enacted in northern states.