6000 USD and 20.000 USD?
The GCSEs are taken at 16 surely(?), with A levels a couple of years later. Most ranking North American universities are happy to take people with A levels. The International Baccalaureate is a good alternative. American curricula, on the other hand, are usually a joke. But if one must go that route, at least aim for a clutch of APs."bf4" said:The cambridge exams that students at these schools are trained for are exactly the same of any other bilingual school with an average level (no A levels just IGCSE, exams that british kids stand for at 13 while in Argentina it's during the last year).