(n^4 - 1) = (n^2 - 1) (n^2 +1) = (n - 1) (n + 1) (n^2 + 1)
6 groups of 18 buttons would translate into multiplication.
6 x 18 = 108 buttons total that Malia has.
830$ there are 52 weeks in a year. 52 times 15 is 780. 780 plus 50 is 830
It depends on what you draw. So I'd like to say C, because you could pull up all the white marbles the first few draws, or none the first few and every other marble. It really depends.
