Jake is importing data from a spreadsheet to a new database. He has prepared the data and opened the new database file. What should he do next? O Give the computer the Import command
O Designate a primary key
Run a query
Select the source

Need asap write a short paper describing the history and differences between six sigma, waterfall, agile, and scrum models. understanding these models can give you a good idea of how diverse and interesting it development projects can be. describe what the rationale for them is and describe their key features. describe the history behind their development. at least 400 words