Answer:
B
Step-by-step explanation:
a²/9
(27a⁻³) (-⅔) = 27^(-⅔) × (a⁻³)^(-⅔)
= (3³)^(-⅔) × a²
= 3⁻²a²
= a²/9
0.4
2/5 = 4/10