transfer pricing

dear sir
could u help me about these two question
1st do it bring a positive or negative contn and how
(1)
frankie co has two divisions A and B. Division A makes a component at a marginal cost of $30 which it can only sell to Division B. Division A has no other outlet for sales.
Division B takes A’s component and turns it into a finished good, incurring its own cost of $55 per unit and selling it externally at $120
what is the minimum and maximum transfer price and if the company is making a positive or negative contribution?

(2)
Division A has decided it wants to maximise its own profits by selling externally at a price of $45 to customer co,after incurring distribution costs on external sales of $3 per unit.As before , Division A can also sell internally to Divison B
Which of the following statements are correct?
(1) The net sales price per unit Division A gets externally is $42
(2)$65 is the maximum transfer price B will pay
(3)If working at full capacity,$42 is the lowest transfer price Division A will accept
(4)If there is spare capacity in Division A ,$30 is the lowest transfer price Division A will accept