I did quite bad in my AS exams - I got a B in AS Maths and An E in Physics. I am already dropping physics to carry on with Maths, Chemistry, History. I think I can get predicted an A in both Chemistry and History, but I am not sure about maths? Can I get a predicted grade A in maths, can I go to Manchester Uni to study economics with my poor AS results and also should I do another AS level to make up for the physics ?