You are a contractor who is installing a new wooden fence for a customer. the dimensions of the fence are 20 feet long and 6 feet high. if each piece of wood is 72 inches tall and 4 inches wide and the wood costs $1.10 per square foot, how much will the wood for the new fence cost?

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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answer: the answer is ann

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