How many marbles of each color must there be so that the odds in favor of choosing a green marble in one draw are 2:3?

How many marbles of each color must there be so that the odds in favor of choosing a green marble in one draw are 2:3? A. 2 black, 1 red, and 6 green b. 1 black, 2 red, and 6 green c. 3 black, 3 red, and 6 green d. 3 black, 6 red, and 6 green 5. A pair of dice is rolled. What are the odds that the sum is 7 or 11?