Vijay is building a new rectangular enclosure in his backyard for his chickens. he has 40 feet of fencing material and he wants the width of the enclosure to be 8 feet. if l is the length of the enclosure, and vijay used all of the fencing material, which equation best models the situation? a. l + 8 = 40 b. 2l + 8 = 40 c. 2(l + 8) = 40 d. 2l + 2(l + 8) = 40