A cab company charges $12 per mile for a lift to the airport. What change would the company make to their charges to make this a non proportional situation?

To make this a non-proportional situation, the cab company would need to change their charges in a way that does not maintain a constant rate per mile.

For example, they could add a fixed fee or surcharge in addition to the $12 per mile charge. So, they might charge $12 for the first mile and then an additional $5 for every mile after that. This would result in a non-proportional situation because the rate per mile is not constant and increases with each additional mile.