In his work called monogram, robert rauschenberg put everyday objects together with collage and expressionist paintings to form what he called

The answer is Combine painting

In his work called Monogram, Robert Rauschenberg put everyday objects together with collage and Expressionist paintings to form what he called combine painting.

Explanation:

This artwork is composed of a stuffed goat with its middle passing through a car tire over an Expressionist painting. As his famous work, this artistic combination of objects created a creative abstractionism with a mixture of surrealism. Several interpretations were made related to this artwork, but I believe that the main objective of this creation is just exists and be observed.