Using your decision variables from the first question, what is the correct formulation for the marketing constraint in the furniture manufacturing problem (slides 27 - 33 in week #8) ?
a) x1 – 2x2
b) x1 + x2 ≥ 10
c) 3x1 + 2x2 ≤ 15
d) 4x1 + 3x2 ≥ 20