Zaheed enjoys walking his dog, Basil, each afternoon. Zaheed typically walks blocks around the neighborhood, which takes about 45 minutes. Today, on his walk around the neighborhood with Basil, Zaheed noted that Basil barked at
other dogs. Zaheed wonders if he can predict how many dogs Basil will bark at tomorrow on the way to the dog park, which is
blocks away.

What assumptions would Zaheed have to make in order to use a proportional equation to make his prediction?