The brightness of a star depends on its , and stars that are closer look .

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?

10% of 1,900,000. show me how you got the answer

What is the scale factor of two similar pyramids with volumes of 64 cubic feet and 8 cubic feet