# shopping cart calculator

# initialize our control variable
c = "yes"

# enter while loop
while c == "yes":
    # ask user for price and perform calculations
    price = float(input("Enter an item price: "))
    tax = .07 * price
    print("Tax on this item is",tax,"; total price is",price+tax)

    # ask user if they want to continue
    # update control variable
    c = input("Would you like to enter another value? Enter 'yes' or 'no': ")