#8 Tessa has a plan for a set of stairs made of concrete, as shown. Each stair is 1 point the same width and height and is taller than the previous one by the same amount. What is the volume of concrete needed for the set of stairs?
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8 Tessa has a plan for a set of stairs made of concrete as shown Each stair is 1 point the same width and height and is taller than the previous one by the same class=