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During a construction project, engineers used explosives to excavate 140 feet of tunnel into a mountain. But because of time constraints and environmental concerns, they brought in a tunnel boring machine (TBM) to excavate the rest of the tunnel. The data table lists some observations an engineer made about the length of the tunnel after the TBM was introduced.

How much of the tunnel was completed 26 days after the TBM was introduced?

 Aug 15, 2018
 #1
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There is no data table in your problem description.

 Aug 15, 2018
 #2
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Guest, if you want an answer you should probably include the data table in your problem description.

 Aug 15, 2018

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