Question

#23 please!!! Thanks

Answer 1

$\text{gcf}(x^2y^2,xy^3)=xy^2\\\\ xy^2=45$

45|3
15|3
5|5
1

$xy^2=3^2\cdot5$

Since x and y are both positive integers, then there's only one possible solution to the above - $x=5,y=3$

So E.