To determine how many hours Corinna needs to work in order to afford the $256 plane ticket, we can set up an inequality.
Corinna starts with $80, and she earns $16 per hour. If she works \( n \) hours, her total savings will be the amount she starts with plus the earnings from her work. This can be expressed as:
\[ 80 + 16n \]
She needs this total amount to be at least $256, which gives us the inequality:
\[ 80 + 16n \geq 256 \]
To summarize, the inequality that shows the number of hours \( n \) Corinna must work is:
\[ 80 + 16n \geq 256 \]