A cab company charges $8 per mile for a lift to the airport, which is proportional since 0 miles cost $0.

What change would the company make to their charges to make this a nonproportional situation?

Responses

Charge $12 per mile instead of $8
Charge $12 per mile instead of $8

Charge $4 per mile instead of $8
Charge $4 per mile instead of $8

No changes are needed
No changes are needed

Charge a flat rate of $10 and then $8 per mile
Charge a flat rate of $10 and then $8 per mile

Charge no flat rate and no $ per mile

Charge a flat rate of $10 and then $8 per mile