I need help with this, I don't really understand it
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The number of potato chips in a bag is normally distributed with a mean of 71 and a standard deviation of 2. approximately what percent of bags contain between 69 and 73 potato chips? approximately 68% approximately 71% approximately 95% approximately 99.7%

Compare the cost of the bike trips from the two companies shown.for both the cost in a linear function of the number of days which statements is true

If value of cos330° is √3/2 then find tan165°.