Answer:
3
Step-by-step explanation:
f(x) = 2x-5
Let x = 4
f(4) = 2*4 - 5
Multiply
f(4) = 8 -5
Subtract
f(4) = 3
In general for a rectangle of dimensions w by h and a semicircle of diameter w we get an area:

The halfs are because a semicircle is half a circle and a radius is half a diameter.
We're told

Substituting,

Answer: B
I think its B (let me know If I'm wrong)
It has been learned that subjectivity and objectivity in history are related to each other. The reason behind is that the objectivities are the historians and scientific researchers who are responsible for exploring ancient structures that reveal past historical stories that happened from the past.
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Answer:
x=2
Hope this helps! Have a good day! :)