A group consists of 4 men and 7 women. 5 people are selected to attend a conference. a. In how many ways can 5 people be selected from this group of ​11?
b. In how many ways can 5 women be selected from the 7​women?
c. Find the probability that the selected group will consist of all women.

Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form:    science fiction books to history books 2. write the ratios as fractions:    dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.

What ia the sum if the first 7 terms of the geometric series

Examine this system of equations. what integer should the second equation be multiplied by so that when the two equations are added together, the x term is eliminated? 3/4x+1/7y=6 1/8x-3/5y=16