#### Answer

See below.

#### Work Step by Step

The contrapositive of $p\rightarrow q$ is $\sim q\rightarrow \sim p$.
The converse of $p\rightarrow q$ is $q \rightarrow p$.
The inverse of $p\rightarrow q$ is $\sim p\rightarrow \sim q$.
Hence here the converse is: If today is not a holiday, then I am in class.
The inverse: If I am not in class, then today is a holiday. The contrapositive: If today is a holiday, then I am not in class.