help!!! (business)

so i am in the 10th grade and ill be taking my first IGCSE in may/ june 2025. i am doing business, english, history, and french.

i have somewhat of an idea for what to study for the other subjects (any notes are welcome!) though i dont know how to start studying for business. in school ive done mocks for it and i got an idea of what the exam will be like, but i wanna know where to start.

please help me out!! thank you!!