Solve the linear programming model formulated in Problem 19 for the Bradley family farm graphically.
a. How many acres of farmland will not be cultivated at the optimal solution? Do the Bradleys use the entire 100-acre tobacco allotment?
b. What would the profit for corn have to be for the Bradleys to plant only corn?
c. If the Bradleys can obtain an additional 100 acres of land, will the number of acres of corn and tobacco they plan to grow change?
d. If the Bradleys decide not to cultivate a 50-acre section as part of a crop recovery program, how will it affect their crop plans?