At the zoo the yellow birds are fed 1/3 of a bag of seeds each day. the bluebird get fed 1/4 as much is the yellow birds. how much of a bag of seeds do the bluebird eat each day?

The perimeter of ? cde is 55 cm. a rhombus dmfn is inscribed in this triangle so that vertices m, f, and n lie on the sides cd , ce , and de respectively. find cd and de if cf=8 cm and ef=12 cm. the answer is not cd=20 and de=15. i have tried that one, it does not work.