How do I simplify 2y > 4​

How do the number line graphs of the solutions sets of -23 > x and x-23 differ?

Joanie watched 1 out of three of a movie in the morning

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?