Answer:
The maximum profit Firm A can earn if it chooses to cheat is $1050.
The maximum profit Firm B can earn if it chooses to cheat is $200.
The maximum profit Firm A can earn if it doesn't cheat is $1000.
The maximum profit Firm B can earn if it doesn't cheat is $100.
If Firm B chooses to cheat, and Finn A also cheats, then Firm B's profits would be 1 % of the profits that it would be making if Firm A did not cheat.
Similarly, if Firm B chooses to not cheat, and Firm A cheats, then Firm B's profits would be 50% of the profits that it would be making if Firm A also did not cheat.
Thus, Firm B's most likely choice should be to not cheat.