Alicia has 7 paintings she wants to hang side by side on her wall.
In how many ways can she arrange all 7 paintings? Show your work.

Question

Alicia has 7 paintings she wants to hang side by side on her wall. 
 In how many ways can she arrange all 7 paintings? Show your work.

anonymous · Answer

Think of this way, there are 7 paintings and 7 spots for it. 
How many paintings can go to the first spot? 
After you have that, think of the 2nd spot than the 3rd and so on.

anonymous · Answer

so 28?

anonymous · Answer

There will a lot lot more. 
I will start it for you: 
1st spot you can choose any so 7 different. 
2nd spot: For EACH 1st painting you can choose (7-1) for the second spot (you cannot put the same painting to 2 different places)
3rd spot: For EACH 1st and 2nd painting you can choose (7-2)=5

anonymous · Answer

It is important that I put EACH all upper case, try to think why

anonymous · Answer

5040?

anonymous · Answer

Yes

anonymous · Answer

Andras help me for another question .