Help me please it's a quiz

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%

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

What number line represents the solution set for the inequality -1/2 greater than or equal to 4