Anyone able to help me

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

Write an equation for the function that includes the points (2,100)and (3,100)

Ben works in his dads bakery packing bagels each package can have no more then 16 bagels 3/4 of the bagels in each package are plain what other fractions could represent the part of the bagels in each package that will be plain