math
posted by thomas .
A class elects two officers, a president and a secretary/
treasurer, from its 12 members. How many different
ways can these two offices be filled from the members of
the class?

Fill the president position in 12 different ways, leaving 11 to pick from for the secretary.
So, number of ways = 12x11 = 132 
In order to select new board members, the French club held an election. 3 out of the 15 members of the French club voted in the election. What percentage of the members voted?