A railroad crew can lay 7 miles of track each day. They need to lay 203 miles of track. The length, L (in miles), that is left t
o lay after d days is given by the following function. L(d) = 203 - 7d (How many days will it take the crew to lay all the track?) (How many miles of track does the crew have left to lay after 18 days?)
I am not positive for the factoring of each expression but for the distributive property you do 8 TIMES x then 8 times 7 so you would get blank plus blank and so on for the next ones.
