In 1971, the 26th Amendment set the legal voting age at 18 for both US federal and state elections.
Delaware ( i hope that helped u) :)
I believe the 16th Amendment details the Income Tax, though there is controversy as to whether or not it was passed legally.
The 23rd Amendment, ratified on March 29, 1961.
The 20th amendment, ratified January 23, 1933 says this.
Federal republic refers to a type of government which has a central government sharing power with several state governments.
All of the answers are correct (A+)