In Problems,
(A) Form the dual problem.
(B) Write the initial system for the dual problem.
(C) Write the initial simplex tableau for the dual problem and label the columns of the tableau.
Minimize subject to
C = 12x1 + 5x2
2x1 + x2 ≥ 7
3x1 + x2 ≥ 9
x1,x2 ≥ 0