Taking a Vacation
Hey, You Never Know!

You can't expect to only spend money on the plane ride, hotel, and rental car when going on a vacation. There also needs to be room for additional costs like fancy food or souvenirs.

  1. Modify your trip_cost function definion. Add a third argument, spending_money.
  2. Modify what the trip_cost function does. Add the variable spending_money to the sum that it returns.