The task asks for "an array: [area, volume]" but the comments and tests want "a query with columns: width, height, depth, area (int), volume (int)"

The task instructions do not match the comment instructions or the expected results

This solution isn't pure.

This solution isn't pure

How do I downvote this?

How would this work with non-number types?

This solution would be better if it used a named constant instead of the abstract value.

I think it's bad practice to modify a parameter within a function unless that's the purpose of the function.

I think modifying a parameter (n) within a function is bad practice as others working on the same code may rely on the original value elsewhere.