text: cars = 100
  space_in_a_car = 4.0
  drivers = 30
  passengers = 90
  cars_not_driven = cars - drivers
  cars_driven = drivers
  carpool_capacity = cars_driven * space_in_a_car
  average_passengers_per_car = passengers / cars_driven
  
  print("There are", cars, "cars available.")
  print("There are only", drivers, "drivers available.")
  print("There will be", cars_not_driven, "empty cars today.")
  print("We can transport", carpool_capacity, "people today.")
  print("We have", passengers, "to carpool today.")
  print("we need to put about", average_passengers_per_car, "in each car.")
  
  name = 'Hira Khan'
  age = 18 #not a like
  height = 64 #inches
  height_in_centimeters = 64*100
  weight = 120 #pounds
  weight_in_kilograms = 120 / 5
  
  eyes = 'Brown'
  teeth = 'White'
  hair = 'black'
  
  print(f"Let's talk about {name}.")
  print(f"He's {height_in_centimeters} cm tall.")
  print(f"he's {weight_in_kilograms} kg heavy.")
  print("Actually that's not too heavy.")
  print(f"He's got {eyes} eyes and {hair} hair.")
  print(f"His teeth are usually {teeth} depdending on the coffee.")
  
  #this line is tricky, try to get it exactly right
  
  total = age + height + weight
  print(f"If I add {age}, {height}, and {weight} I get {total}.")
  