Baby kelsey wants to arrange 12 blocks in a row. how many different arrangements can she make?

We have been given that Baby Kelsey wants to arrange 12 blocks in a row. In order to find the total number of different arrangements, we can use theorem of counting principle.

In the first position she has 12 options.

Now, one block is already in the first position hence now she has 11 options.

Similarly, at the third position she has 10 options.

Hence, using the counting principle, the number of different arrangements are

Therefore, 1163289600 different arrangements can she make.

for me what is finding a good play list and going out because i can not lay down and relax so i usually go to a coffee shop. i also use the gum trick and this actually works. another advice is highlighting subjects it really does me remember certain things

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