Coordinate plane graph illustrating the intersection of the line x + y = 30 with the lines y = 12 and x = 20, highlighting a shaded rectangular region.
Graph showing the line x + y = 30 intersecting with horizontal line y = 12 and vertical line x = 20, forming a shaded rectangle with vertices at (0,12), (18,12), (20,10), and (20,0).
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ID: #804324