What is the answer to page 13.1 in Punchline Algebra book b what happened to the baseball player who was unfaithful to his wife?

In the context of the Punchline Algebra book, page 13.1 likely contains a math problem or puzzle, not a narrative about a Baseball player. The phrase "what happened to the baseball player who was unfaithful to his wife" is likely a joke or pun related to algebra or mathematics. It is important to focus on solving the math problems presented in the book rather than seeking a literal answer to the question about the baseball player.