what can i be with these subjects please people i need help

Many fields are open to you. The real question is what do you want to do?

maybe bcom economics

What do you want to do with economics?

becoming a economist

Great! Good luck! :-)

what would you have recommended for me

I recommend you go to college and major in economics.

how would i be able to use my life sciences theoretically

You might be an economist for a health care group or a hospital.

and what about other career paths for my life sciences