What contributions did Friedrich Engels, Karl Marx, and Rosa Luxemburg make to our understanding of how

What contributions did Friedrich Engels, Karl Marx, and Rosa Luxemburg make to our understanding of how political and economic power intersect and amplify each other, especially within the capitalist mode of production?  In addition, how did those three thinkers approach capitalism overall? How does capitalism differ from non-capitalist modes of production, such as feudalism? How is wealth generated within capitalism? Who does most of the actual labor? Who ends up controlling most of the wealth created under capitalism? Why and how?  Describe the basic mechanics and the logic of capitalism, according to Engels, Marx, and Luxemburg. Base your response on the Moodle material posted for Friedrich Engels (Engels in Manchester & Engels’ “The Conditions of the Working Class in England”), as well as the selections of Marx and Luxemburg’s writings in our assigned “From Marx to Gramsci” Reader.