The length of one side of a square pond is 15 feet the pond is surrounded by a 3 foot walkway what is the total area of the pond and walkway in square feet

Can you simplify 4/7? 24 points will be awarded!

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

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?