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Find the perimeter of a rectangle whose vertices are located at (2, 2), (2, -1), (-1, -1), and (-1, 2).
In most states, the price of each item is not the total cost. Sales tax must be added. If sales tax is 6%, the equation for total cost is c = 1.06p, where p is the price before tax. Graph the equation and find the cost of a $10 book after sales tax.