A population of middle school students contains 160 sixth graders, 180 seventh graders, and 140 eighth graders. Nine seventh graders were part of a random sample of the population chosen to participate in a survey. For the sample to accurately represent the population, about how many sixth graders should be chosen? 7 8 14 16

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A: As per policy, we are solving only the first Question, Please post multiple questions separately.…

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A: To identify V(G) for the given graph G .

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Q: (b) Find the solution of the following initial value problem y" – 4y" – 5y' = 9 + 5x, y(0) = 0, y' =…

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