Answer:
c
Step-by-step explanation:
[tex]\frac{81x^2}{9x^3}\\=\frac{81}{9}*\frac{x^7}{x^3} \\=9*(x^{7-3}) \\=9x^4[/tex]
c. 9x⁴
aⁿ/aˣ = aⁿ⁻ˣ
81x⁷ / 9x³ = 81/9 x⁷⁻³
= 9 x⁴
