Which of the following options represents the graph of f(x) =2sin(1/2x)

Volume of cylinder with a radius of 8cm and height of 25 cm

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%

When y’all answer can y’all explain too !