Given the following LP model, using Solver
Min 3S + 9C
s.t.
6S + 10C <=60
7S + 5C <= 42
X , Y >= 0
a. What is the optimal value of the objective function?
b. What are the optimal values of the two decision variables?
c. Find the range of optimality for objective function coefficients S and C.
d. How would a decrease of 1 gram in the S coefficient of the objective function affect the optimal values of the decision variables?
e. What is the range of feasibility of the dual value for the RHS of S and C?