Final answer:
The question involves comparing batting averages and includes information about Mariano Rivera's cutter pitch effect according to Newton's third law of motion. There is also a separate physics problem related to Nolan Ryan's pitching velocity.
Step-by-step explanation:
The student's question relates to the comparison of batting averages between two players, Fredo and Karl, to determine who has a higher average in relation to their respective teams. However, the context provided discusses the influence of forces in baseball, highlighting Mariano Rivera's cutter and its effect on bats, referring to Newton's third law of motion. An additional problem given is a physics question regarding Nolan Ryan's pitch velocity and the time it takes for the baseball to reach home plate.