The inequality that represents the total tips (t) in dollars that the waitress must earn in an 8-hour shift to meet or exceed the minimum wage is:
8 * 6.10 + t ≥ 8 * 7.25
In this equation, 8 represents the number of hours worked, 6.10 represents the hourly wage paid by the restaurant, and 7.25 represents the minimum wage per hour. The left side of the inequality calculates the total income from the hourly wage and tips, while the right side represents the minimum wage for the same duration. The inequality ensures that the total income, including tips, is greater than or equal to the minimum wage.