The twenty dash twotwenty-two members of the mathematics club must send a delegation to a meeting for student groups at their school. the delegation can include as many members of the club as desired, but at least one member must attend. how many different delegations are possible?

The number of subsets of a set of 22 elements is 2^22 = 4,194,304. This count includes the empty set, which is the one delegation that is not allowed.

There are 4,194,303 delegations possible.

step by step explanation: when u removing the parentheses and combined them that would be : x+3y-x-y=2y

one fourth of 9% = 2.25%

gavin is correct in saying : the equivalent quarterly interest rate would be

2.25%.