Answer: float()
Explanation: The code used to calculate total price = tax + price.
price = input("What is the item price? ")
tax = price * 0.065
totalPrice = price + tax
Since the input required from the user will be numerical, that is the price of an item, then it has to be stated explicitly, instead the code throws an error as it will read in a string if not stated explicitly.
Also, Given that the total price calculation will require decimal or fractional calculations, using the float() function will allow the program to read in the user input as a numerical value which can be used in further calculation as the float () function provides flexibity when working with fractional values.