A rectangular feild is 112m long and 100m wide Two roads each 3m wide are to be constructed at the center of this field one is parallel to the length of the field and the other is parellal to the breadth of the field find the area of the part of the filed not cover by the roads

The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally distributed with a mean of 1252 chips and standard deviation 129 chips. (a) what is the probability that a randomly selected bag contains between 1100 and 1500 chocolate chips, inclusive? (b) what is the probability that a randomly selected bag contains fewer than 1125 chocolate chips? (c) what proportion of bags contains more than 1225 chocolate chips? (d) what is the percentile rank of a bag that contains 1425 chocolate chips?