The expression to represent the Uber charges in Levi's scenario can be written as:
\[ 5 + 1.50m \]
In this expression:
- \( 5 \) represents the initial pickup charge.
- \( 1.50m \) represents the charge per mile driven, where \( m \) is the number of miles driven.
So, the complete expression is \( 5 + 1.50m \).