Hii!
Home science is a course which includes if study of science, basically in everyday life and thier management. As, the name suggests, it consists of subjects such as food science, Nutrition human development, apparel science, resource and management etc.,

You don't require maths for MBBS. To get into the mbbs course, you need to go for NEET UG entrance exam. The eligibility criteria for this entrance exam states that the Candidate must have passed class 12th with minimum 50% marks in PCB Subject combinations from a recognised Board of education.

Hope this helps.
Good luck!