please explain those mini- case problems

Is this so? l types JBC5 1. How does undue influence differ from duress? 12. Identify the situations where duress may be raised as a legal means for avoiding a contract. Mini-Case Problems 1. A and B entered into a verbal agreement whereby A would sell an automobile to B for $6,500. B drew up a written agreement (which A and B signed) that set out the price as $6,000. A failed to notice the change at the time of signing the agreement. What advice would you give A? 2. How would your answer to question 1 differ if A was illiterate and B read the contract aloud to him, stating the price to be $6,500 instead of the $6,000 price set out in the written agreement? 3. At a sports bar, Martin offers to sell an authentic Wayne Gretzky Edmonton Oilers hockey jersey to his friend Alfred for $400. Unknown to both, Martin's dog at home has just finished shredding the jersey. Carl arrives at the bar, and hearing of the deal, tells Alfred he has previously seen the jersey, and that it is not game-worn" by Gretzky, but rather a current authorized production official replica jersey, made by an NHL-licensed supplier. What legal principles apply to this deal? 4. An industrial bakery agrees to supply one hundred thousand loaves of bread monthly to a major Canadian grocery chain at a price of $1.00 per loaf. Before deliveries begin, the baker rethinks the deal, feeling it should have charged more. On review, it discovers that the contract recites "one hundred" loaves of bread monthly at $1.00 per loaf. What recourse will the grocery chain have if the bakery refuses to honour its price beyond 100 loaves? 5. Eric, at age 80, owns a large property of about 100 forested acres, half of which is covered with walnut and butternut trees he had planted as a boy. Eric is approached by a real-estate agent who tells him he has a client who is looking for land with trees where a new house can be built. Eric severs the treed half of his property and sells it, and the new owner builds a family home. In talking with his new neighbour, Eric discovers to his horror that the buyer is the owner of a custom sawmill, and intends to cut down all of the hardwood trees for furniture and veneer. Does Eric have any recourse? Case Problems for Discussion CASE