## Precalculus (6th Edition) Blitzer

The number of ways such jokes can be delivered if George Carlin’s joke is delivered first and Jerry Seinfeld’s last is $24$
We know that the Fundamental Counting Principle says that the number of ways in which a series of things occurs in succession can be computed by multiplying the number of ways in which they may occur. Thus, using the Fundamental Principle of Counting: \begin{align} & 4!=4\cdot 3\cdot 2\cdot 1 \\ & =24 \end{align}