Answer:
B. 5¹³
Explanation:
(5²)⁴ * 5⁵
With parenthesis you multiply the exponents:
(5²)⁴ becomes 5⁸
Add exponents when multiplying base numbers are the same:
5⁸ * 5⁵ = 5⁽⁸ ⁺ ⁵⁾ = 5¹³
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