input: Write a python function to find the minimum temperature from a list of temperatures.
  assert find_min_temp([87, 97, 75, 104]) == 75
  assert find_min_temp([60, 45, 70, 55]) == 45
  assert find_min_temp([101, 102, 100, 99]) == 99
output: def find_min_temp(temperatures):
      return min(temperatures)