Respuesta :

the one that is not an example of informal amendment is :
madison in 1789 
Constitution did not specifically list this as forms of amending the constitution

hope this helps

Answer:

Marriage between Blacks and Whites.

Explanation:

Informal amendment are changes that have been done but not in its written words. It's important to know that informal amendments can be used for any branch of the government.

So, all this mean that this changes are in the interpretation as such. A few big examples are Gay Marriage or Preventing Marriage between Blacks and Whites.