Valerie spots a rosewood bookcase in an antique shop owned by Jim and Belinda, which has a price tag of $4000. Valerie approaches Jim and tells him that she will take the bookcase for $2000. Jim says that it isn't possible but how about $3000? Valerie says no, how about $2,500? Jim says no again, and he tells Valerie that his lowest price is $3000. Valerie does not reply that she will accept the bookcase for $3000 and she steps away from Jim to take a call on her mobile phone. While Valerie is talking on her mobile phone, Jim turns to serve another customer Isabella. After finish talking on her mobile phone, Valerie then turns to pay for the bookcase, but Jim says he has already sold it to Isabella for $4000. Valerie is furious and says that she and Jim had a contract, and the bookcase was hers.

As between Valerie and Jim, who made the offer? (4 marks)

As between Valerie and Jim, who accepted the offer and was the acceptance valid? (3 marks)

Jim's wife Belinda runs the rare stamps section of the business and conducts much of the business through the post. On Monday, she wrote separate letters to two of her regular customers, Eddie and Joseph, offering to sell them some rare stamps for $1500. Eddie received Belinda's letter at 5 pm on Tuesday and immediately posted a letter of acceptance to Belinda on Wednesday at 9 am. Joseph also received Belinda's letter of offer on Tuesday, and went to Belinda's shop at 10 am on Wednesday and happily bought the rare stamps. On Thursday, Belinda received Eddie's letter of acceptance and consequently Belinda telephoned Eddie and informed him that she had already sold the stamps to Joseph. Eddie is certain that he is entitled to the stamps.

3. Is Eddie correct to say that he is entitled to the stamps by arguing that his letter of acceptance was effective? (3 marks)

Jim and Belinda frequently exhibit their rare stamps and antique collection to promote their business. Belinda asks one of her sisters, Nicky who is looking for a job to organize and exhibit their collection. Belinda is overjoyed with Nicky's performance and she does not want Nicky to stop helping her. A couple of months later, Nicky receives a good job offer from the National Philatelic Gallery. Belinda tells Nicky that if she stays to work for her until the end of the current exhibition, she will "give her some of the rarest stamps in her collection that are worth a lot of money". Nicky agrees to give up her good job, so Belinda asks her lawyer to record her promise in a written agreement. A month after the exhibition has ended, Belinda refuses to hand over the rarest stamps to Nicky and she tells Nicky that agreements between family members are not binding.

4. Can Nicky enforce the agreement against her sister, Belinda? (5 marks)

Jim has been hiding a secret from Belinda that he has a girlfriend, Sheena for the last 5 years. They met when they were enrolled in a website design class. Jim has been spoiling Sheena by giving her a lot of money every month. Recently, they have been quarrelling a lot and Jim has decided to recover the money he has given to Sheena. He says to his lawyer that the money had been a loan, not a gift. Sheena disagrees and claims that the money had been a gift. After they have calmed down, they meet up to patch things up. Jim and Sheena draft and sign a document before Jim gives it to his lawyer to formalize it. In the document, Jim agrees that he will not recover the money he has given to Sheena, but that Sheena is to help him in his online business that has not been doing well. In exchange for Jim's promise, Sheena agrees to help Jim with his online business because Jim needs Sheena's website design skills to improve his online business.

5. Has Sheena given valid consideration for Jim's promise? (5 marks) 2

consideration

D Question 31 Offers are terminated under the common law by operation of law as follows O De destruction of the subject matter through no fault of either party before the offer h scented. O By the death ge Incompete've of both parties prior to the verplace of the offer OFan offer statei "this offer in open for 10 drys' the offer sopines at midnight on the tonin day I'm the offer ina. For the volume element shown in the figure, write down mole balances for A, Cand D. Simplify to obtain dF A/dV, dFc/dV, dFoldV in terms of / and /24 b. Write down total heat balance for the volume element. Assume the heat capacities of A, Cand D as the same, Ca Simplify to obtain dT/dV in terms of FA, Fo Fo fix and 24The diagram that identifies the major processes, data flows, and data stores within tl boundaries is: a. Context Diagram b. Level-0 DFD C. Level-1 DFD d. Level -2 DFD e. None of the above A process numbered as 1.2.5 in a DFD belongs to a. Context Diagram b. Level-0 DFD C. Level-1 DFD d. Level -2 DFD e. None of the aboveINSTRUCTIONS: All output must be printed and handed in, not posted on Blackboard and not e-mailed to me. Given the database tables below, create the following 4 diagrams using VISIO, MS-Word or another appropriate software package. The diagrams cannot be hand written. o Context Diagram DFD Diagram 0 ERD depicting relationships among the objects listed using crow's foot notation " Specify Primary Keys and Foreign Keys in the ERD using , o Use Case Diagram for the "Customer Places Order" use case . All 4 diagrams must be submitted for consideration to receive any extra credit. Customer Order Orderitem Product Supplier CustomerID OrderID LiOrderitem ProductID SupplierID FName OrderDate OrderID Prod Name SupplierName LName OrderNum ProductID UnitPrice ContactName Address CustomerID Quantity Packaging Contact Title City TotalAmt InventoryQty Address St BooleanPaid SupplierID City Zip St Phone Zip email Phone emailSystem analysis and design CS 240 Take Home Exam (6 Marks) Read the system carefully Pharmacy Information System The customer can buy a drug, take it back, or inquire about its price The pharmacist can add medicines to the system, delete them, and adjust their price. The manager can create reports and add pharmacists to the system The system can print an invoice for the customer for what he bought from the pharmacy if the customer wanted to do so. Questions: 1. Draw a Context Diagram for this system( 2 Marks) 2. Draw Level 0 DFD for this system (2 marks) 3. Draw Use Case for this system (2 marks)