Cuál es el objeto de estudio de la economía​

Which statement is a good description of a model? a) models are a description of nature based only on one or two variables. b) models are testable ideas but they are not very to most people. c) models are a description of nature that predicts more accurately than real events. d) models are an approximiation of a real system that omits all but most essential variables in a system.

Alexander hamilton was one of the most important of the founding fathers. which of the following is he responsible for? select all that apply.

to say that impression management is collaborative means that