All people do not get taxed the same, and no amendment says that they should or do.
9 amendment
The Fifth amendment. "To plead the fifth"
The 2nd
Double jeopardy.
King Solomon taxed the people to make money , so that he could build the temple that his father David started.
the 9th amendment granted "says the people have many rights that are not stated in the Constitution.
Basically it States that women get the same rights as men do.
it is the first amendment.
The 17th amendment says that senators have to be elected by the people, instead of appointed by the government. A candidate must win the popular vote.
the first amendment
ThE 24th Amendment.
I am not sure what amendment it is in, but I do know what it is called. It is call Double Jeopardy. This concept, as you said, means that a person, if found NOT GUILTY for a crime, can't be tried for that same felony.