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Factor the expression using the gcf. the expression 21m−49n factored using the gcf

Table which ratio is equivalent to 3: 7? 6: 7 3: 21 24: 56 15: 30

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?