There is mathematics in astrophysics?

Yes, maths is an important subject in astrophysics. You need to be well versed with calculations which will also involve maths.

Yes, there is maths as the course is a combination of physics and other subjects where you'll study about astronomy.

If you are asking this kind of question, probably you haven't even read about astrophysics. I would say that astrophysics consists of 95% maths as its name suggests.