The city of Green Valley, Arizona, is trying to determine where to locate a new fire station. The fire station is expected to serve four neighborhoods. The locations and number of homes in the neighborhoods are as follows:
a. Calculate the weighted center of gravity for the new fire station, based on the information provided.
b. What other factors (e.g., zoning laws, maximum response time) might come into play when making the final decision?

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Demand X Y Weighting point coordinate coordinate factor Birchwood 5.00 4.00 163 Cactus Circle 7.00 1.00 45 De La Urraca 2.00 2.00 205 Kingston 3.50 1.50 30