$\"\"$

Let x be the age of the passenger in years.

The word $\"\"$ at least $\"\"$ means $\"\"$ greater than or equal $\"\"$ and its symbol is $\"\"$ .

The word $\"\"$ The age x must be at least 16 years $\"\"$ represents the inequality $\"\"$ .

The inequality $\"\"$ graph is

$\"graph$ $\"\"$

The inequality is $\"\"$ and its graph is

$\"graph$

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