Stephanie is solving a quadratic by taking square roots, but the teacher told her that she messed up solving the problem. What step did Stephanie make
her FIRST mistake
(x + 2)2 - 4 = 60

The number of chocolate chips in a bag of chocolate chip cookies is approximately normally distributed with a mean of 12611261 chips and a standard deviation of 118118 chips. (a) determine the 2626th percentile for the number of chocolate chips in a bag. (b) determine the number of chocolate chips in a bag that make up the middle 9696% of bags. (c) what is the interquartile range of the number of chocolate chips in a bag of chocolate chip cookies?