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OpenStudy (anonymous):
Bret had a rectangular piece of plywood with dimensions x feet and 10 feet. He put a frame along 15 feet of the edge of the plywood. An expression is shown below. (2x + 20) - 15 Part A: What does the expression represent? Part B: What does 2x + 20 represent? Part C: What does 2x represent?
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OpenStudy (anonymous):
help please
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