Trey has three pairs of Vans, two pairs of Nikes, and four pairs of Adidas shoes in his shoe bin. One morning, the electricity went out and Trey pulls two shoes at random. Remember each pair of shoes counts as 2 shoes.

a) What is the probability that he pulls out two adidas shoes without replacement? Round your answer to the nearest tenth of a percent.

%

b) What is the probability that he pulls out a Vans, decides that's not what he wants, so he replaces it then pulls out two Nike shoes?

Round your answer to the nearest tenth of a percent.

%