What is the surface area of a rectangular prism with length 8cm, width 5cm, and height 10cm?
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What is the range of the data set: 4, 9, 12, 15, 18, 21, 21, 25, 28?
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Question: What is the perimeter of a circle with a radius of 5 units, a rectangle with length 10 units and width 5 units, and a parallelogram with base 8 units and height 6 units?