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Which term defines a power shared by state and federal governments? concurrent expressed implied reserved

How can firms use marginal analysis to determine the price of a product? a) profit maximization can occur when the marginal cost exceeds the marginal revenue. b) the total cost of production can determine the individual unit price of a product. c) marginal analysis can be used to determine at what price profit maximization occurs. d) firms can calculate the marginal cost of a product and set the price lower than the cost.

The nervous system is responsible for our fight-or-flight response.a.autonomicb.parasympatheticc.somaticd.sympathetic  select the best answer from the choices providedabcd