It’s definitely E. I say this because there is no correct answer.
Answer:
The value of f(x) when x=-1 is 0.5
Therefore 
Step-by-step explanation:
Given that y=f(x)=
to find the f(x) when x=-1 :
That is to find f(-1)
Put x=-1 in the given function f(x)=



Therefore 
The value of f(x) when x=-1 is 0.5
Answer:
Step-by-step explanation:
Angles EBC and EDC are the same. and straight lines equal 180
so now to solve for x

Sixteen million three hundred thousand