pleas help im so stumped 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.

Elect the correct text in the passage.vhich sentence is a simple sentence? time is not always change. time can also mean continuity, and it can mean keeping acknowledged truths in mind despite differences incraumstonces. there is no better example of this in things fall apart than the retellings of the proverb about the bird named eneke, the larin both retellings is olmost identical despite the length of time that has passed between their repetitions. in comparing the usages of the samproverb, achebe allows his readers to note the similarities and differences between the situations, and he them understand how this stbe applied to their own lives.submit