Open with ~ 30 At a meeting. each person shakes every other person's hand exactly once. If there are & handshakes in total, the number of people attending the mosting, or, can be diaformined using the equation C. A-I 31. The constant form in the expansion of the binomial ( 1 + 2x) is A. B. 20 C. 160 256 Numerical Response 12 If. when written in descending order by degree of x. the fourth form of (x + p)' is 4 320x". p is equal to Page 17 / 26 +