Question: Pedro, a contractor, is trying to choose between purchasing a steel or an aluminum 50-ft tape measure. (a) If he wants the tape measure that

Pedro, a contractor, is trying to choose between purchasing a steel or an aluminum 50-ft tape measure.
(a) If he wants the tape measure that expands and contracts less, which tape measure should he purchase? Consider that the tape measures were calibrated at 68.0°F in the factory.
(b) How much can he expect his new tape measure to contract if the temperature outside is 18.5°F?

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