Use a proportion to solve the problem.On a map of the Fox River, 1 centimeter represents 3 kilometers. If a trail by the river is actually 13.80 kilometers long, what is the length of the trail on the map?

A. 10.8 cm
B. 6.6 cm
C. 5.8 cm
D. 4.6 cm

Answer: D

Mathematics

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Express the product as a sum or difference.sin 4x sin 2x

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