$$ 1)\:a^3a^7 = $$ $$ 2)\: \frac{q^7}{q^5} = $$ $$ 3)\: k^9 : k^6 = $$ $$ 4)\: (n^4)^6 = $$ $$ 5)\: k^8 \cdot p^8 = $$ $$ 6)\: (\frac{f}{q})^2 = $$ $$ 7)\:e^4e^4 = $$ $$ 8)\: \frac{z^6}{z^4} = $$ $$ 9)\: p^5 : p^6 = $$ $$ 10)\: (d^7)^2 = $$ $$ 11)\: t^3 \cdot z^3 = $$ $$ 12)\: (\frac{v}{t})^2 = $$