What is the probability of drawing two blue marbles if the first marble is placed back in the bag before the second draw?
Give your answer as a rational number, reduced to simplest terms.
![What is the probability of drawing two blue marbles if the first marble is placed back in the bag before the second draw Give your answer as a rational number r class=](https://us-static.z-dn.net/files/d35/d613a424a4c635e5b3d4d9d4c38dee55.jpeg)