Amath book comprises of 2 sections: arithmetic and geometry in the ratio 5: 3. how much of each type of content will be needed to make a book of 480 pages?

If 20% of a number is 35, what is 50% of that number?

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?

Can someone me out here and the tell me the greatest common factor