how much would it cost for me to do: AQA biology AQA chemistry Edexcel Mathematics and how do i enter?
That would depend on the exam Center. If you google exam Centers near you they usually have their fees on the website or you may have to contact them and they’ll send you a quote. When I entered they sent me a form I had to fill in with your name, UCI number, the cash in codes etc. They’ll explain it in more detail if you ask though.
how much would it cost for me to do: AQA biology AQA chemistry Edexcel Mathematics and how do i enter?
Biology and Chemistry include an assessment of your practical skills. Very few centres offer this. The cost of it varies but budget around £1000 each. There is private candidate advice on the AQA and Edexcel web sites