Fin n f: 1. Eur very research-minded Assistant Professor, Cilena Dovzhenlco. tells her colleague, Hellen Mimmbo, that Google inc. [Alphabet |nc.} generated prots every single year slnoe its existence as a corporate entity and that its major source of revenues [advertising] has been above 90% contribution to total revenues for every single year up to this point in time. i-lellen is wondering whether Diena ls correct. Please advise Hellen on this matter. And do indicate to Hellen why you think your advice is indeed correct. {3 marks}! 2. Please provide two clearly and fully-stated reasons why the execution of strategy is more managerially challenging than the formulation of strategy. Please state each reason in a separate paragraph. {4 marks} 3. Offer a full statement on what exactly Is the business model of a oompany. And now, please consult Case No. 3 In your textbook dealing with Costco Wholesale Corporation and describe accurately and precisely what Is the business model of Costco. And does the business model of Costco, as described in the case material, accord with your textbook's specifications of a business model? [4 marks]