1. Explain the distinction between Exclusive Powers, Concurrent Powers and Residual Powers, which are outlined in the Australian Constitution. Give an example of each power.

2. You are in the train station waiting for your train to arrive. You see a vending machine from where you can buy snacks and chips for $3.50. Posted on the machine is a sign saying: "Property of XYZ Vendsolutions Pty Ltd". You insert the coins required into the machine and out comes a packet of chips. However, when you open the packet of chips, you find bits of plastic inside and you don't want to eat the chips. You want your money back. With reference to the essential elements for the formation of a contract, explain:

a) Did you enter into a contract in this scenario?

b) If your answer is yes, with whom did you enter a contract?

3. What are the common law rules regarding contracts entered into by infants, and when are such contracts valid, voidable or void?

4. Explain the operation of the contra proferentem rule. Is such a rule defensible in today's business environment?

5. In September, Amina hired Bryan as a delivery man. Bryan was to commence work on 1 November. On 1 October, Amina wrote to Bryan telling him that, despite their agreement, economic circumstances were such that she no longer required his services. Can Bryan sue Amina? Explain it in light of the principles learned on breach of contract.