A Contractor purchases gravel one cubic yard at a time a A gravel driveway L yards long and 6 yards wide is to be poured to a depth of 1 foot Find a formula for n L the number of cubic yards of gravel th contractor buys assuming that he buys 10 more cubic yards of gravel than are needed to be sure he ll have enough cubic yards help formulas n L b Assuming no driveway is less than 5 yards long or more than 12 yards long find the domain and range of n L Enter your answers as comma separated lists of numbers Domain Range help numbers help numbers c Assuming that no driveway is less than 5 yards long or more than 12 yards long sketch a graph of n L Which graph A D below most closely matches the graph you drew