Answer:The answer is the second option: 36πx^18y^10
Explanation:
To solve this exercise, you must follow the proccedure below: 
 
 1. You have that: 
 
 - The formula for calculate the area of the circle is: A=πr² ("r" is the radius of the circle). 
 -The problem says that the circle has a radius of 6x^9y^5 (r=6x^9y^5) 
 
 2. When you substitute r=6x^9y^5 into A=πr², you obtain: 
 
 A=πr² 
 A=π(6x^9y^5 cm)² 
 
 3. By applying the exponents properties, you have: 
 
 A=36πx^18y^10 cm²