Well i would say those subjects lead to probably doing a science or economics degree at university. This means you could go into a number of science careers such as medicine, pharmacy etc. Also a lot of people woth science degrees often go into finance or business so a science or economics degree could lead you nicely into a job in the corporate world.
I think the more important question isn't what paths do your subjects lead to but what are your interests and why are you taking those subjects. If you really enjoy biology and chemistry you could do biochemistry at uni. If you really like economics you could become an economist. Try and think more about what things interest you and less about what paths your subjects lead to.