If one bag of grass seed covers 2000 square feet, how many bags are needed to seed the lawn?

Three cylinders have a volume of 2836 cm^3. cylinder a has a height of 900 cm. cylinder b has a height of 225 cm. cylinder c has a height of 100 cm. find the radius of each cylinder. use 3.14 as an approximate for π

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What are the domain and range of f(x)= -log5(x+2)