Respuesta :

This question requires you to solve,

(y²)⁵×y⁸ =y⁽²ˣ⁵⁾ × y⁸
            = y¹⁰ × y⁸
            = y⁽¹⁰⁺⁸⁾
            = y¹⁸
The correct answer is y¹⁸