Determine the first five multiples for the following number 22

Write the fraction 9/50 as a decimal if needed round to the nearest hundredth

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?

What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid? explain your reasoning.