1. If we know that 2^{100} x 2^{n} = 2^{300 }what is n?

2. If we know that 2^{10} / 2^{n} = 8, what is n?

3. If we know that 2^{2n} x 2^{3} = 2^{11} what is n?

4. If we know that 2^{20} = 4^{n} what is n?

5. If we know that 9^{13} = 3^{n} what is n?