Answer: A
Step-by-step explanation:
[tex]\frac{9x^5y^1^6}{45x^5y^4}[/tex]
Divide as usual.
9/9=1
45/9=5
After this, subtract exponents.
[tex]\frac{1}{5}x^5^-^5y^1^6^-^4[/tex]
[tex]\frac{1}{5}y^1^2[/tex]
or
[tex]\frac{y^1^2}{5}[/tex]
