Well to find the area of a circle Pie times r^2. But If you already have the diameter, you could either split the diameter in half, and do the regulaur formula, OR you could ude this formula ----> Pie times The diameter
Hey!
Explanation:
↓↓↓↓↓↓↓↓↓↓
First, remove parenthesis.

Secondly, multiple by the numbers.


Third, apply exponents rule.



Finally, refine.

<u><em>Answer⇒⇒⇒⇒28</em></u>
Hope this helps!
Thank you for posting your question at here on Brainly.
Have a great day!
-Charlie
Answer:
321.56
Step-by-step explanation:
volume = (4/3) * π * r³
The answer is D. -(4x-3)(5x-2)