A bag contains 8 red crayons, 14 purple crayons, 6 yellow crayons, and 4 Green crayons. A crayon is selected, NOT replaced, then another is selected. Find the probability of two greens.
P(two greens)

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

Given the points a(-2, 1) and b(8, 6), find the coordinates of the point c on directed line segment ab, that partitions ab in the ration 2: 3.

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.