Garrett is mowing a circular patch of grass given by the equation x² + y2-5x-8y-9=0. 1. What is the equation of the circle in standard form? 2. What is the radius of the circular patch of grass? Round the radius to the nearest tenth of a unit. 3. What is the area of grass that Garrett mows? Round the area to the nearest tenth of a unit. Hint: the area of a circle is given by the equation A = r². Use 3.14 to approximate pi.

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