Find the graphical solution of the inequality. 
Definitions:
Opportunity Cost
The forfeiture of advantageous outcomes from different possibilities upon making a specific choice.
Petroleum
Petroleum is a naturally occurring, flammable liquid found in rock formations which is refined into fuel and various chemical products.
United States
A country primarily located in North America, consisting of 50 states, a federal district, five major self-governing territories, and various possessions.
Mexico
A country located in the southern part of North America, known for its rich cultural heritage, diverse landscapes, and significant economic influence.
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