Answer: 5^13
Explanation:
1. The Exponent out of the parenthesis would be multiplied by the exponent in the parenthesis
(5^2)^4*5^5
5^8*5^5
2. Since the exponents have the same base, when they are multiplied you will keep the same base, and the exponents will add up
5^8*5^5=5^13