$$ 1)\:h^3h^5 = $$ $$ 2)\: \frac{y^5}{y^5} = $$ $$ 3)\: n^3 : n^3 = $$ $$ 4)\: (c^6)^3 = $$ $$ 5)\: k^9 \cdot a^9 = $$ $$ 6)\: (\frac{f}{b})^2 = $$ $$ 7)\:h^6h^6 = $$ $$ 8)\: \frac{t^2}{t^3} = $$ $$ 9)\: e^9 : e^9 = $$ $$ 10)\: (k^9)^5 = $$ $$ 11)\: m^2 \cdot k^2 = $$ $$ 12)\: (\frac{d}{c})^6 = $$