Answer: 720
Step-by-step explanation:
Given: The total number of trophies to arrange on the top shelf of a bookcase = 6
The number of ways there are to arrange the trophies is given by using permutations because here order matters i.e.
[tex]^6P_6=\frac{6!}{(6-6)!}=6!=6\times5\times4\times3\times2\times1=720[/tex]
Hence, the number of ways there are to arrange the trophies is 720.
