The Natchez Trace Bridge in Franklin, Tennessee, is 1,500 feet long. Suppose you build a model of the bridge using a scale of 1 inch:25 feet. How long is the model? (Hint: 12 inches = 1 foot).

At a scale of 1 inch for every 25 feet, the model is 1,500 ÷ 25 = 60 inches long. Convert inches to feet: 60 ÷ 12 = 5 feet. So the model is 5 ft long, choice a.

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