Abag contians 5 blue and 8 red and 7 green marbels. a marble is selacted at random. find the propobility the marbelis not red.

Total number of marbles = 5 + 8 + 7 = 20

Total number of non-red marbles = 5 + 7 = 12

P(not red) = 12/20 = 3/5

-

3/5

answer: https://socratic.org/questions/3-000-is-invested-in-an-account-paying-4-interest-and-twice-that-amount-is-inves#644924

Step-by-step explanation: Please go here in the link and you will have the answer with an  better explanation.

answer: $6000 is the answer (but go in the site would be better )