The width of a rectangle measures (1.8t - 8.8u) centimeters, and its length measures (6.4t – 3.4u) centimeters. Which expression represents the perimeter, in
centimeters, of the rectangle?

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?