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Our club has $25$ members, and wishes to pick a president, secretary, and treasurer. In how many ways can we choose the officers, if individual members are allowed to hold $2,$ but not all $3,$ offices?

 

Consider the six by six grid of unit squares below. How many rectangles of area 8 square units can be formed using only the line segments of the grid as the sides of the rectangles?

 
Guest Jun 3, 2018
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2325

idk if this is correct

 
Guest Oct 13, 2018
edited by Guest  Oct 13, 2018
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I have no idea what the question is. It makes no sense to me.

 
Melody  Oct 19, 2018

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