# math

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I need help answering the following question:

A road sign reads: "5% grade next 4 miles." What is the change in elevation from the lookout to the point four miles ahead (to the nearest foot)?

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5% * 4mi = .2mi = 1056 ft

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2

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7a-4(b 2)for a =5 and b=2"?

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what if Ali only had tens and ones? How could she have modeled 624 without using hundreds?

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