At the end of a capital lease, a business has no option left to purchase the equipment

What is the optimal solution to the following linear program?

Max 2X + Y Subject to 2X + 2Y ? 40 X + Y ? 10 X ? 0 Y ? 0 a) the solution is unbounded b) (0, 20) c) (10, 0) d) (20, 0) e) the program is infeasible

Assume a nonlinear programming problem with a single constraint has been solved. The value of the Lagrange multiplier is $0.75 and the value of the optimal profit (Z) is $25

If the right-hand side of the constraint is increased from 38 to 42, the new value of Z will be ________. Fill in the blank with correct word.