Which could NOT be the shape of a cross section of this cylinder?

Abaker makes 186 cookies. some are chocolate chip and some are oatmeal raisin, and both kinds are made with and without nuts, as shown in the table above. because they are more popular, the baker made 2/3 of the cookies chocolate chip. if a chocolate chip cookie is chosen at random, what is the probability that it will have nuts? a) 21/93 b) 21/62 c) 41/93 d) 21/41

What can you determine about the solutions of this system

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5