please help this is business law

Question 3 3 Points Paula, a CPA, is a college professor at Nova University. Her reputation is excellent She is scheduled to teach Corporate Income Taxation and Commercial Law next semester but is unable to do so. She arranges to have her brother. Tippy, an experienced tax attorney and law school professor, to be her classroom substitute for the semester. The arrangement is approved by the university. Is this delegation legally permissible? A Yes, even if Tippy didn't comparable teaching experience. No, because the performance of the contract depends on Paula's special skill. Yes, since Tippy has the necessary legal background to teach those courses No because a duty such as teaching is automatically non-assignable by Paula. Question 10 3 Points Mary paints beautiful portraits using both oil & paint pastels. You have seen and admired her work for years. You contact Mary and commission her to paint a portrait of your dog, Hal. You agree to pay her $5000. After sitting with Hal for several hours Mary decides that Hal is the nastiest, foulest, most rancid smelling dog she had the misfortune of trying to paint. She in turn arranges for her friend George to paint Hal instead. Mary's act is an attempted: Assignment B Revocation Termination D Delegation Question 14 3 Points Jim is trustee for his elderly cousin Mary Ann's $500,000,000 trust. Mary Ann is elderly & housebound, and most of her friends are deceased. Thus Mary Ann relies on Jim to do her grocery shopping, pay her bills,& walk her dog, among other things. Jim also makes monthly payments to Mary Ann from trust funds, pursuant to the terms of the trust agreement. Jim also knows that Mary Ann is independently wealthy aside from the trust. One day, Jim shows up unexpectedly at Mary Ann's house and delivers an ultimatum: "Look here, unless you sign this will naming me the sole beneficiary of your estate, I will not do anything else for you ever again. No groceries, no distribution checks, NO NOTHING!!! I also disconnected your phone in case you had any ideas about calling anyone else! Mary Ann realizes that Jim is quite serious and signs the will naming her no good, greedy cousin as her sole beneficiary, on these facts, the will is: A void due to duress. B Voidable due to undue influence. Voidable due to duress. Void due to fraud. Question 21 3 Points A lack of bargaining power by one party is a factor in determining whether a contract is unconscionable True False Question 29 3 Points When contractual duties are delegated, the party making the delegation remains ultimately responsible for the performance of the contract. True B False Question 30 3 Points An intended third party beneficiary cannot sue to enforce a contract obligation A True B False