I need help with this homework

Given the key displayed below 4x4 key. Pick a plain text message (three words, no spaces; meetmetonight, for exampleor use something else!), go through the detailed steps of the Hill cipher explained in the textbook (Chapter 2 and any supporting material), and encrypt it. Then reverse the encryption (again in a detailed, step-by-step fashion) and recover the plaintext.

Here is the key matrix:

8 6 9 5

6 9 5 10

5 8 4 9

10 6 11 4