Where can you find the even answers to the mcdougal littell geometry book?

I know how you feel, but my friends dad helped make it. Here are some reasons it does not have even answers.

1. They already give the odds, so why give the evens?
2. If they give the evens too, then they'll give all the answers.
3. Most teachers assign even numbers, so they would not let them cheat and look in the answer section.
4. This goes with number 3. If the students need help, they could look at the other answers.