The tape diagram represents an equation find the value of x that makes the equation true

Solve for x -2.3(r - 1.2 ) = -9.66 enter you answer as decimal.

You can find the constant of proportionality by finding the ratio of

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?