The front and back covers of a text book are each 0.3 thick between the cover are 200 sheets of paper each 0.008 cm thick how high is a stack of 10 books

Avegetable garden and a surrounding path are shaped like a square together are 12 ft wide. the path is 1 feet wide. if one bag of gravel covers 8 square feet, how manu bags are needed to cover the path? round your answers to the nearest tenth.

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What is the similarity ratio of a cube with volume 729m^3 to a cube with volume 3375 m^3