Final answer:
Without a complete equation, it is impossible to determine how many hours Michelle starts earning overtime pay, but typically overtime begins after a standard workweek threshold, such as 40 hours.
Step-by-step explanation:
The question provided appears to be incomplete, as the equation meant to represent Michelle's wage is not fully shown. Therefore, based on the information given, it is impossible to answer the question the student posed regarding the number of hours after which Michelle starts earning overtime pay.
However, to address a similar question based on the reference examples provided, an equation would typically be structured to have two parts: regular pay up to a certain number of hours (the standard workweek hours), and then increased pay (overtime) for hours worked beyond that standard. The point at which overtime starts is determined by the threshold set by either company policy or labor laws, often at 40 hours per week in many regions.
If a complete equation were provided, the number of hours after which Michelle earns overtime pay would be the point where the hours worked exceed the regular allotted hours as defined in the equation.