Solve the system of inequalities by graphing the solution region. 
Definitions:
Cartel Arrangements
Agreements among competing firms to control prices or exclude entry of a new competitor in the market, often resulting in anticompetitive behavior.
Oligopolists
Firms or individuals that control the market for a particular good or service in an oligopoly, where a small number of entities dominate.
Monopoly Power
The ability of a single seller to control market prices and total market output.
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