Which of the following is a real word problem that can be solved with the song 102.50+ -39.95.

One possible word problem that can be solved with the expression 102.50+ (-39.95) is:

"At a restaurant, John had a bill of $102.50 for dinner. He had a coupon for a discount of $39.95. How much did John have to pay for his meal after applying the coupon?"

The expression "102.50+ -39.95" is not a song. It appears to be a mathematical expression or equation. Therefore, it cannot be directly used to solve a word problem. However, if you provide me with a word problem or context in which this expression could be applied, I can help you solve it step by step.