7
If the people are always facing forward? 24 ways.
People are different in many ways. People are different in their values, morals, and personality. People are also different in the way they look, act, and speak.
36
Many people are helping animals in different ways.
4 people seated on a row may have 4! = 4x3x2x1 = 24 different ways to sit.
yes
430
cars
There are 12 ways.
The number of ways is 18C5 = 18!/(5!*13!) = 8,568 ways.
There are many different types of cancer, so there are many different ways of reacting with the symptoms.
3 items (or people) can line up in 6 different sequences. 6 items (or people) can line up in 720 different sequences.