Solve three and two fifths plus three and four sixths. six and six thirtieths
seven and two thirtieths
seven and six elevenths
nine and two thirtieths

The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).

Ming says that 0.24 > 1/4 because 0.24= 2/4. which best explains mings error

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?