# A railroad crew can lay 5 miles of track each day. They need to lay 140 miles of track. The length, L (in miles), that is left to lay after d days is given by the following function. L(d) =140-5d How many miles of track does the crew have left to lay after 18 days? How many days will it take the crew to lay all the track?

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A railroad crew can lay 5 miles of track each day. They need to lay 140 miles of track. The length, L (in miles), that is left to lay after d days is given by the following function. L(d) =140-5d

How many miles of track does the crew have left to lay after 18 days?
How many days will it take the crew to lay all the track?
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Step 1

The given function is L(d) = ...

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