Solve the system of inequalities by graphing the solution region. 
Definitions:
Tax Revenue
The income that is gained by governments through taxation from individuals and businesses.
Economic Income
The total value of all income generated by the assets of an individual or organization, including both realized and unrealized gains.
Net Worth
The total value of an individual's or organization's assets minus their liabilities.
Net Worth
The difference between the total assets and total liabilities of an individual or business.
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