input: Write a python function to calculate the total price of items in a grocery list.
  assert calculate_total_price([['apple', 2.00], ['banana', 4.00], ['bread', 3.50], ['orange', 1.50]]) == 11.00
  assert calculate_total_price([['milk', 2.50], ['eggs', 3.00], ['cheese', 5.00]]) == 10.50
  assert calculate_total_price([['water', 1.00], ['soda', 2.50], ['juice', 3.75]]) == 7.25
output: def calculate_total_price(grocery_list):
      total_price = 0.0
      for item in grocery_list:
          total_price += item[1]
      return total_price