POLL: How much would you pay for the following service?

[aliki]

Need some advice from parents and babysitters out there. How much would you pay for someone to babysit for 1 hour on 2 days and transport your child to school for 5 days?

Schedule:
Tue June 18      : Pick-up and transport; between 8 - 9 AM

Wed June 19   : Babysit Erika from 7 - 8 AM
                          Transport to school at 8 AM

Thur June 20   : Babysit Erika from 7 - 8 AM
                          Transport to school at 8 AM

Fri June 21      : Pick-up and transport; between 8 - 9 AM

Mon June 24   : Pick-up and transport; between 8 - 9 AM

Additional details:
- I've never hired/paid this person before. This is a one-time deal as she's normally at college in Maryland.
- Babysitter/driver is 19 years old and just finished her first year at college. She currently works at her aunt's daycare as an assistant teacher in the afternoons.
- Babysitting will be at my home.
- Distance from home to school is 6 miles with one turn and no traffic lights.
- I normally pay my regular babysitter $8/hour and "round up for a tip" (i.e. $20 for 2 hours, $25 for 3 hours, $35 for 4 hours).