cars = 100
space_in_a_car = 4
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 ate 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.")

i = 10
x = 5
j = 20
print (i + x)
print (i * x)
print (i / x)
print (i +x + j)
