Respuesta :

Answer:

 B.  5¹³

Step-by-step 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