Posted by **lizzie** on Thursday, April 22, 2010 at 10:45am.

people are entering a room with five doors and come out, how many ways are there if they canâ€™t go out from the door they went in.

- math -
**jane**, Thursday, April 22, 2010 at 11:07am
how do you find the area of a square

- math lizzie -
**PsyDAG**, Thursday, April 22, 2010 at 11:26am
If a person comes in one of the five doors and can only leave from another door, that means there are four ways that person can leave.

- math jane -
**PsyDAG**, Thursday, April 22, 2010 at 11:28am
First, if you have a question, it is much better to put it in as a separate post in <Post a New Question> rather than attaching it to a previous question, where it is more likely to be overlooked.

Multiply the height times width. With a square, the sides are equal, so area = s^2 (side squared).

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