This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important asects of the task and its potential use. Here are the first few lines of the commentary for this task: Nicolas is helping to paint a wall at a park near his house as part of a community service project. He had painted half of the wall yellow when the par...

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