discrete math

The DC council consists of 6 men and 7 women. When appropriate, label n's and /'s in your work. a. In how many ways can the Council choose a slate of three officers (chair, secretary and treasurer)? b. In how many ways can the Council make a three-person committee with at least two councilwomen? c. What is the probability that a three-person committee contains at least two councilwomen