<PRE><B>Question 252001</B>
solve the following: 
TR=110Q-Q2
TC=1/2Q2+50Q+30 
Determine the level at which the firm maximizes its total profit.
----
PR = TR-TC
PR = -(3/2)Q^2 + 60Q - 30
----
max occurs when Q = -b/2a = -60/(2(-3/2)) = 20
---
Maximized profit when Q == 20
--------------------------------
Cheers,
Stan H.</PRE>