The answer choice which could represent the real-world description of 4x - 17 is; $17 less than the cost of 4 hot dog combos.
What could be a real-world description of the expression?
It follows from the task content that the real-world description of the expression; 4x -17 is to be identified.
On this note, if the cost of 1 hot dog is; x.
Hence, the cost of 4 hot dogs is; 4x.
Ultimately, the given expression represents; $17 less than the cost of 4 hot dog combos.