The task asks to multiply numeric object 'properties', however the term 'object properties' include both the 'property keys' of the object as well as the 'property values' of the object. It is clear the intention of the task is to change property values.
This change improves clarity of the task description.
I've added the solution here because the reader is obliged to go to the sandbox to see the solution, which has not happened till now in the course. And even there's already a link for doing that just above.
