The real-world problem that could be solved with the sum \( 102.50 + (-39.95) \) is:
Neveah earned $102.50 last weekend. She then spent $39.95 on a new game. How much money from her weekend earnings does she have left?
In this scenario, the \( 39.95 \) is a subtraction from her earnings, which can be represented as \( 102.50 + (-39.95) \).