How was the tributary mode of production organized in the Inca Empire prior to Spanish contact?

Using the book, ″The Inca Empire: The Formation and Disintegration of a Pre-Capitalist State,″ by Thomas Patterson. 1997: Bloomsbury Academic, respond to the instructions below. In a paper :-Tom Patterson argues that the Inca Empire was a class-stratified, state-based society, with a tributary mode of production. -How was the tributary mode of production organized in the Inca Empire prior to Spanish contact? -How did the Spanish insert themselves into this structure, and transform Andean society from the 1530s through the 1570s?Support your argument with evidence from the book.