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.

they are simplified

step-by-step explanation:

the 8 in 8,420 is in the thousands place so it's value is 8 thousand.

the 8 in 6,870 is in the hundreds place so it's value is 8 hundred.

divide 8000 by 800 to find the answer:

8000 / 800 = 10

the 8 in 8,420 is 10 times greater than the 8 in 6,870