Getting around Ingolstadt and getting to Munich

Hi everyone,

We are planning on staying in Langenbruck, which is about 20 mins south of Ingolstadt. Just wondering how difficult it would be to get to Ingolstadt, and later Munich without a car?

If we had to take a taxi from Langenbruck to Audi in Ingolstadt, around how much would that cost?

Thank you in advance for any insight you can provide!