Hey im not such a mathes expert and would appreciate your help on some of the following questions if you could try to explain how to work them out if you can ill give you one of many :(

Using the rules of indices, simplify the following and give your answers with positive indices where applicable. Show your working clearly.

i)

3-2 5-3 20

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3-3 5-2 2

Also calculate log1195 without using a calculater.

All helps appreciated :)