Fractions to decimals 19/31

Name the most appropriate metric unit for each measurement like the mass of cow

Asphere has a diameter of 10 in. what is the volume of the sphere?

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?