sed i) the unit profit of X1 decreased by 20? Increased by 10? ii.) The unit profit of X2 increased by 80? What is the optimal objective function lii) what will happen if unit profit of X1 increased by 30 and X2 decreased by 202 profit? sed i) the unit profit of X1 decreased by 20? Increased by 10? ii.) The unit profit of X2 increased by 80? What is the optimal objective function lii) what will happen if unit profit of X1 increased by 30 and X2 decreased by 202 profit