E GRAPHS AND FUNCTIONS Writing and evaluating a function... Mary V Espanol A construction crew is lengthening a road. The road started with a length of 56 miles, and the crew is adding 2 miles to the road each day. Let L represent the total length of the road (in miles), and let D represent the number of days the crew has worked. Write an equation relating L to D. Then use this equation to find the total length of the road after the crew has worked 39 days. Equation: 0=0 D Total length of the road after 39 days: miles X ? An