To find the total number of contestants, \( C \), that audition in \( h \) hours when 50 contestants are auditioned each hour, you can use the following equation:
\[ C = 50h \]
Where:
- \( C \) is the total number of contestants,
- \( 50 \) is the number of contestants auditioned each hour,
- \( h \) is the number of hours.