Chloe has enough sand to fill a rectangular sandbox with an area of 36 square units. She wants the outer edges of the sandbox to use as little material as possible. Which dimensions will give Chloe the smallest perimeter?

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?