Liv earns 9.50 for every two brackets. she sells. the equation y=4.75 can be used to represent this situation. what is the constant of proportionality? what does the constant of proportionality represent in the context of the problem

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?