=i. A new competitor in town has started making wood-framed windows as well. This may force the company to lower the price it charges and so lower the profit made for each wood-framed window.

How would the optimal solution change (if at all) if the profit per wood-framed window decreases from

$60 to $40? From $60 to $20?

j. Doug is considering lowering his working hours, which would decrease the number of wood frames he makes per day. How would the optimal solution change if he only makes 5 wood frames per day?