SOLUTION: how many ways can 5 students be assigned a seat in a classroom if there are 7 seats in a row

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Question 1084593: how many ways can 5 students be assigned a seat in a classroom if there are 7 seats in a row
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Do they have to sit all together or can there be spaces in between students?
In other words is,
A_B_CDE acceptable or must there be a student in each adjacent seat such as
ABCDE__ or _ABCDE_ where "_" is an empty seat.
Please repost your question with the additional information.