Mashaal Masha
In the figure below, $\overline{AF}$, $\overline{BE}$, and $\overline{CD}$ are parallel. Points $B$ and $E$ lie on $\overline{AC}$ and $\overline{FD}$, respectively. If $AB=9$, $BC=18.5$ , and $FE=8.5$ , what is the length of $\overline{ED}$, to the nearest tenth?

 

Difficulty: Medium
A: 

16.8

B: 

17.5

C: 

18.4

D: 

19.6

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