A construction crew needs to pave a road that is 206 miles long. The crew paves 7 miles of the road each day. The length, L (in miles), that is left to be paved after d days is given by the following function. I(d) = 206-7d Answer the following questions. oo (a) How many miles of the road does the crew have left to pave after 12 days? I miles (b) If 143 miles of the road is left to be paved, how many days has the crew been paving the road? 1 days