BCA

Yes, you can get admissions as the eligibility criteria includes 50% marks in XII class or equivalent!

Colleges will reopen in August mid or in early September for graduate studies, after the admission process is complete for new students!

Yes. You can do the BCA degree after passing your 10+2 class without mathematics.

Yes you are eligible for BCA because the eligibility criteria is minimum 50% marks in aggregate with English as a mandatory subject, And you have scored 75% as an average.

Yes, you can, but you should have one of the following subjects compulsory : -
Computer Sc. Information Practices
Computer Applications
Multimedia and Web Technology
Data Management Application
Web Application.