Profit Maximization.? 3. Murdock Glass sells glass panes. If profit is given by π = -500 + 60 Q - Q2 , what is the profit maximizing level of output? 4. Kenny's Cartage hauls crushed stone for $15 per ton and has total cost of TC = 100 + 5Q + Q2 . What is Kenny's profit maximizing level of output? What are Kenny's profits? 5. Bolan's fabric shop has demand function Q = 100 - 2P and cost function is TC = 10 + 10Q + 2Q2 . What are profit maximizing quantity, price, and profit?