def tax(shopping_cart, percent):

"""

Adds a `percent` tax to each item's price in a shopping cart.

>>> fruitCart = [("apple", 0.5, 3), ("banana", 0.25, 4)]

>>> tax(fruitCart, 10)

[('apple', 0.55, 3), ('banana', 0.275, 4)]

>>> calCart = [("oski", 1000, 1), ("go", 1, 2), ("bears", 3.5, 2)]

>>> tax(calCart, 100)

[('oski', 2000.0, 1), ('go', 2.0, 2), ('bears', 7.0, 2)]

"""

return____________