Two students are going to the store to buy school supplies. one student buys 2 packs of pencils and 3 packs of pens for $8.25. her friend buys 5 packs of pencils and 2 packs of pens for $11.00. is there enough information to determine the cost of one pack of pencils and one pack of pens? if so, find the cost of each.

(co 3) the soup produced by a company has a salt level that is normally distributed with a mean of 5.4 grams and a standard deviation of 0.3 grams. the company takes readings of every 10th bar off the production line. the reading points are 5.8, 5.9, 4.9, 6.5, 5.0, 4.9, 6.2, 5.1, 5.7, 6.1. is the process in control or out of control and why? it is out of control as two of these data points are more than 2 standard deviations from the mean it is in control as the data points more than 2 standard deviations from the mean are far apart it is out of control as one of these data points is more than 3 standard deviations from the mean it is in control as the values jump above and below the mean