A certain house has proved difficult to sell. The salesperson has suggested that it might sell faster if the owners enclosed a portion of the backyard with a privacy fence. If the area of the rectangular lot to be fenced is 400 square feet and the frontage is 10 feet, what is the number of running feet of fence needed to enclose the area?

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Real estate math commonly covers commissions, property taxes, area/acreage, and loan calculations, frequently using a T-chart method (Part/Total Rate).


1. A certain house has proved difficult to sell. The salesperson has suggested that it might sell faster if the owners enclosed a portion of the backyard with a privacy fence. If the area of the rectangular lot to be fenced is 400 square feet and the frontage is 10 feet, what is the number of running feet of fence needed to enclose the area?