A) a forest has 5040 trees number of beech : number of maples = 3.2 : 1 what fraction of the trees are beech? B) write number of beech : number of maple in the form 1 : n
where n is a decimal number.

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.