An electrician estimates 2,500 feet of number 12 NM cable is needed to wire a house. Each coil of cable holds 250 feet. The amounts used in different rooms are as follows: 335.4 feet, 293.7 feet, 1,205.1 feet, and 337.5 feet. a. How many coils of wire are used? b. How many feet over or under is the estimate? a. b.

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A: Let's find.

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