I'm pretty sure it's graph A. I apologize if it's wrong hope this helped.
9^3 is 729 so x^3 = 512 and you find it to be 8
By definition, the circumference of a circle is:

The area of a circle is:

Where,
r: radius of the circle.
When the radius is double, then the new area is:

Rewriting we have:

In terms of a we have:
Answer:
The new area of the circle in terms of a is:
<h3>
My answer~</h3>
900.2 or 900 1/5
<h3>
My Step-by-step explanation~</h3>
<em>4501</em> ÷ <em>5</em>
=
<em>900.2</em>
- then convert to fraction or leave as is
<em>900 1/5</em>
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