Using the ILAC method to answer these questions please

Question 1 Tina offered to sell her house to Samu for $120,000. Samu said he would take it for $1 10,000. Tina refused to sell at this price. Later, Samu agreed to the original price. Explain whether Tina is obliged to sell her house to Samu. Question 2 Tim advertises in the local paper that he has lost his wallet and offers a reward of $500. Tom who has not read the advertisement find the wallet and returns it to Tim. He later finds out that there is a reward for the return of the wallet, and asks Tim for the reward claiming that he had showed acceptance by returning the wallet. Tim refused to pay the reward and so Tom sued Tim for breach of contract. Explain with reference to the Acceptance element whether Tim is obliged to pay the reward. Would it be different if Tom knew of the reward before he found Tim's wallet? Question 3 Clearup placed an advertisement in a magazine: Clearup is guaranteed to work on problem skin. Use it according to the instructions for 3 months and experience a clear skin. If this does not happen we'll refund your money and pay you $50. Martin read the advertisement, purchased a three-month supply being 3 tubes at $10.00 each and used it according to the instructions, At the end of the period, his skin was worse. Explain whether there was an offer between Martin and Clearup that he can make a claim under. Question 4 Patricia makes a written promise/offer to Ted to sell him her car for $10,000. In her promise/offer she stated "this promise/offer will remain open for 5 days'. Two days later she tells Ted she changed her mind. With reference to the principles of Consideration, is the promise by Patricia enforceable? Question 5 Katrina, a 16-year-old tennis star, had a two-year contract with her coach, Harry, she had a couple of losses and in a fit of anger she told Harry he was no good as a coach and to pack his bags and leave. Harry had 12 months left on his contract at the time. With reference to the principles governing capacity to contract, can Katrina avoid the contract with Harry