Idk if I’m right :( pls help! It’s a timed test.

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%

Factor the polynomial. b^2 + 4b + 4

What is the point slope form of a line with slope -5 that contains point (2,-1)