A wooden deck of uniform width will be constructed around a pool that is 30 feet by 20 feet. With the new decking, the area of the deck and the pool will be 1064 square feet. The wooden deck will cost $21 a square foot to build. Find the width of the deck and the cost of the deck construction.

20, $9744
5, $22,344
4, $9744
20, $420
Quadratic Equations



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