It looks like you have entered strings instead of variables in two lines of your code:
calculateTax( )function call.
- Adding the
taxvariable to the
Try deleting the
'total' string and replacing it with clicking/pressing the
total key on the coding keyboard instead.
Next, delete the
'tax' string and then click/press the
tax key on the coding keyboard.
Here is a link to the Bill Helper explainer, if you need further help:
Plz help me with this