Posted by Audrey on Wednesday, October 17, 2007 at 10:14pm.
oh, sorry again, I thought I'd typed it, but my keyboard keeps running low on battery...
A 360
B 420
C 840
D 2520
E 7560
oh, it's not my keyboard, I guess it's not letting me post the answers in column, well, anyways, they are
A) 360 B) 420 C) 840 D) 2520 E) 7560
again, I'm so sorry, but I really could use some help, please.
There are three ways to fill the last place.
The the other four spaces can be filled in 7*6*5*4 ways
so the number of ways = 3*7*6*5*4 = 2520
oh, thank you so much!
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