PLEASE HELP!! 3 IN 1 1.solve and simplify 2/7 Divided by 4/5

2. Convert the fraction to a decimal 38/333

3. Convert the fraction to a decimal 12/111

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?

Standard deviation of 19,29,21,22,23

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