$$x=3^{2}=9$$  $$5$$ cubed is $$5^{3}$$. And the base is $$5$$.  So, $$x\cdot y=9\times 5=45$$ 
There are two positive integers, $$x$$ and $$y$$. $$x$$ equals to $$3^{2}$$, and $$y$$ is the base of $$5^{3}$$. What is the product of $$x$$ and $$y$$? 

  * $15$ 
  * $45$ 
  * $90$ 
  * $1125$ 