Question

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 days will it take the crew to lay all the tracks?
how many miles of track does the crew have left to lay after 18 days?​

Answer 1

Answer:

4

Step-by-step explanation: