2. Tip Calculator and 3. Tip Calculator
Ooops, did you mean to assign tax to .0675?
Since the previous lesson was about arithmetic and you gave us a value to assign to tax of 6.75, I added the line tax= 6.75 / 100
and since 6.75 / 100 == .0675 and implements the previous lesson. Just figured you should update your code to actually evaluate the expressions given, not just indicate that the text didn't look the same.
This is particularly poignant when the very next lesson (3) is to assign the tip percentage, which requires 15.0/100 rather than 15/100 or .15.
There is no explanation that you need to use a float (15.0) rather than 15 and why? And why not 15.0 / 100.0? Just two oddities in the simplest Python class ever.
In fact, you should give two kinds of errors. Code errors, which represent problematic coding issues and Content errors which would show when someone added a value you didn't ask for.
If the code compiles correctly and the values are not exact, it should be a different kind of error as that indicates a different kind of problem. It would help with learning.
tax=6.75 / 100