Hard math question!!?

Question

please answer this(:

five people are going to be seated in a row of 7 chairs. how many different ways can they be seated??

Answer 1

35 because u multiply 7 by 5

Answer 2

7*6*5*4*3

first one have 7 choises

secdond one 6

......

Answer 3

35

Answer 4

35 ways

Answer 5

it depends on what math class you are in. But if you know permutations and combinations you would want to use those. Since order matters then you would want to use permutations and it comes to 2520.

Answer 6

7 x 6 x 5 x 4 x 3. The first person has 7 options for a chair, the second has 6, and so on.