Samuel needs to mail a package

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%

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

Find the area of an equilateral triangle with a side of 6 inches