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Mathematics 21 Online
OpenStudy (anonymous):

A tree casts a shadow of 28 feet. At the same time, a biologist who is 7 feet tall casts a shadow of 2 feet. How tall is the tree? 8 feet 14 feet 78 feet 98 feet

OpenStudy (anonymous):

Proportion i think... 28/x=2/7 can you solve for x?

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