HELLO,

In Class 9th typically the subjects you get are English , Math , Science and Social Science and plus a second language with options like skill based electives such as IT, AI , Yoga , Painting or Home Science , basically in class 9th the subjects are decided depending on the board like (CBSE , ICSE )and school offerings , typically every board have typically have these same subjects that i have mentioned above in class 9th. Yes, you may get the option to choose between standard Maths or basic mathematics in class 9th that depends on your school board rules.

Hope this will help you !