Solve these problems! Show your work if you would like.

1. [tex]3^{2} x 3^{2}[/tex]

2. [tex]2n^{4} x 5n^{4}[/tex]

3. [tex]6r x 5r^{2}[/tex]

4.[tex]2n^{-8} x 6n^{4}[/tex]

5.[tex]5b^{2} x 8b[/tex]

6.[tex]4x^{2} x 3x[/tex]

7. [tex]\frac{2^{4} }{2^{2} }[/tex]