What are non-legislative power of Congress?

When were criminals first used to create a system to catch other criminals

Give an example of a situation in which an individual's pursuit of economic self-interest may not benefit but instead harm the rest of society

Quick using the information in the graph, one might speculate that a) w.w.i created increased job opportunities in the u.s. b) the election of president hoover in 1936 caused unemployment to decline. c) the return of soldiers following w.w.ii caused unemployment to increase in the u.s. d) the new deal programs of president roosevelt created employment opportunities in the u.s.