"""simple docstring"""







def 			lowercase__(       __SCREAMING_SNAKE_CASE							:     float     ,			__SCREAMING_SNAKE_CASE							:     float      ):
     return price * (1 + tax_rate)


if __name__ == "__main__":
       print(F"{price_plus_tax(100, 0.25) = }")
       print(F"{price_plus_tax(1_25.50, 0.05) = }")


"""simple docstring"""







from __future__ import annotations



def 			lowercase__(       __SCREAMING_SNAKE_CASE							:     list      ):
     if not nums:
          raise ValueError('List is empty'      )
     return sum(__SCREAMING_SNAKE_CASE      ) / len(__SCREAMING_SNAKE_CASE      )


if __name__ == "__main__":
       import doctest

       doctest.testmod()

