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3 problems match “rectangles”. Clear

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1. Area of a rectangular garden ●○○○○ 10 ptsThe perimeter of a rectangular garden is 60 feet. If the length of the garden is twice the width, find the area of the garden, in square feet.
2. Rectangle area with vertices on a hyperbola ●●●○○ 50 ptsThe diagonals of a rectangle are both 10 and intersect at $(0,0)$. All four vertices of the rectangle lie on the curve $y=\frac{12}{x}$. Calculate the area of the rectangle.
3. Blue rectangles on a blackboard ●●●○○ 50 ptsBlue and red rectangles are drawn on a blackboard. Exactly 7 of the rectangles are squares. There are 3 more red rectangles than blue squares. There are 2 more red squares than blue rectangles. How many blue rectangles are there?