Babysitter - Full-time / Part-time

We are looking for a great babysitter for 2 children in Odenton our 2-year-old And then our 6-year-old after school. We would prefer someone who could help out with homework help. We would prefer a babysitter who has their own car, who does not smoke and who is CPR certified. The days are Monday- Wednesday 11am-4 p.m. and must be able to pick 6-year Old up from school walking distance around corner we are paying $300 a week