The school can only seat 50 students in every bus. if the school is planning on taking 360 students on a field trip to the polynesian cultural center, how many school buses will they need?

Carl's candies has determined that a candy bar measuring 3 inches long has a z-score of +1 and a candy bar measuring 3.75 inches long has a z-score of +2. what is the standard deviation of the length of candy bars produced at carl's candies?