Answer:
Step-by-step explanation:
[tex]9xy*(\frac{2}{3}x)^{3}=9xy*\frac{2^{3}}{3^{3}}*x^{3}\\\\=9xy*\frac{2*2*2}{3*3*3}*x^{3}\\\\=\frac{8}{3}x^{(1+3)}y\\\\=\frac{8}{3}x^{4}y[/tex]
